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Tóm tắt nội dung (trích từ tài liệu gốc): COACHING & SPORT SCIENCE REVIEW The Official Tennis Coaching and Sport Science Publication of the International Tennis Federation 22nd Year, Issue 64, December 2014 www.itftennis.com/coaching/sportsscience CONTENTS ISSUE 64 ISSN: 2225-4757 Pg. Title / Author 2 Editorial 3 A study of the physiological characteristics of tennis Bernardino S�nchez-Alcaraz Mart�nez (SPA) 6 Adaptive and reactive skills involved in the return of serve in tennis Carlos Avil�s, Luis Ruiz-P�rez, David Sanz & Jose Navia (SPA) 9 The Secrets of Spanish Tennis Chris Lewit (USA) 11 Why do some elite players accomplish their
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COACHING & SPORT
SCIENCE REVIEW
The Official Tennis Coaching and Sport Science
Publication of the International Tennis Federation
22nd Year, Issue 64, December 2014
www.itftennis.com/coaching/sportsscience CONTENTS ISSUE 64
ISSN: 2225-4757
Pg. Title / Author
2 Editorial
3 A study of the physiological characteristics of tennis
Bernardino S�nchez-Alcaraz Mart�nez (SPA)
6 Adaptive and reactive skills involved in the return of serve in tennis
Carlos Avil�s, Luis Ruiz-P�rez, David Sanz & Jose Navia (SPA)
9 The Secrets of Spanish Tennis
Chris Lewit (USA)
11 Why do some elite players accomplish their Grand Slam goals while others fail?
Niksa Djurovic (CRO), Ljubica Stanisic (CRO) & Fabrice Sbarro (SUI)
14 What are the key points to win in tennis?
Cedric Roure (FRA)
16 Understanding tennis learning: Reflective considerations on tennis learning
theoretical underpinnings
Zoi Papageorgaki (GRE )
18 Core Stability: Connecting the core and legs
Carl Petersen (CAN) & Nina Nittinger (CAN)
21 Customer service within the tennis industry
Mark Tennant (GBR) & Abbie Probert (GBR)
23 Coaches are role models: Tales of influence
Janet Young (AUS)
25 Laterality in tennis
Eduardo Vicencio (MEX)
30 Recommended books
Editors
31 Recommended web links
Editors
32 Guidelines for submitting articles to ITF Coaching & Sport Science Review
Editors
COACHING & SPORT
SCIENCE REVIEW
The Official Coaching and Sport Science Publication of the International Tennis Federation
EDITORIAL
Welcome to issue 64 of the ITF Coaching and Sport Science record attendances, and increasing TV and online audiences." A key
Review which is the third issue of 2014. The articles in this issue factor in the success of Davis Cup in 2014 has been the launch of
cover a variety of topics including the secrets of Spanish tennis, Show Your Colours, a new fan-focused campaign to promote Davis
accomplishing Grand Slam goals, specific key points in tennis and Cup and Fed Cup as the world cups of tennis, and already used by
reflective considerations on tennis learning. over 60 nations globally. Building on the unique team nature of
both competitions, Show Your Colours uses branding elements for
The ITF is pleased to announce that the 2015 ITF Worldwide promotion, in-stadium activities and all of the ITF's website and
Coaches Conference by BNP Paribas will take place in Antalya, social media activity.
Turkey from Tuesday 17 to Saturday 21 November 2015. The event
is being organised by the ITF in conjunction with the Turkish Tennis In 2014 the ITF Junior Tennis Taskforce published recommendations
Federation (Turkiye Tenis Federasyonu) and Tennis Europe. The ITF for 10 & 12-and-under competition for National Associations. The
Worldwide Coaches Conference by BNP Paribas is an international recommendations are to assist National Associations and their
coaching conference which regularly attracts over 800 coaches and coaches with how to benefit the 10 & 12-and-under players training
experts from over 80 different countries around the world. The venue and playing in the national competition structures. The taskforce
will be the Kaya Palazzo and Belek hotels & Convention Centre in is made up of high profile experts in the field of junior tennis high
Antalya. The ITF Worldwide Coaches Conference by BNP Paribas is performance and player development, representing ten of the
the showpiece of the ITF's Coach Education Programme. This 5-day most successful tennis nations from each region around the world
conference will bring together leading international experts in coach including Argentina, Australia, Brazil, Canada, France, Germany,
education, player performance and sport science to present on Great Britain, Japan, Spain and USA. Click here to access the
the latest developments in these fields through practical on-court recommendations.
coaching presentations as well as lecture room presentations.
Tennis Xpress continues to be implemented in many National
This year has seen 5 successful BNP Paribas Regional Coaches Association's national development programmes worldwide. Tennis
Conferences take place across the continents, showcasing the Xpress is an easy, active and fun coaching programme for adults
latest advances in tennis coaching, teaching methodology and and the aim of the course is to enable starter adults to learn to `Play
tennis specific sports science research. The theme for the Regional Tennis the Easy Way!'. By the end of the course all adults will know
Coaches Conferences this year was 14 & under tennis. The events the basic techniques, tactics and the Rules of Tennis and will be able
were conducted in partnership with Olympic Solidarity and the to play user friendly competition using the green or yellow ball on
Regional Associations. We would like to thank the speakers, the a full court. To access to six-week course schedule and to find our
host national and regional associations as well as Olympic Solidarity more about Tennis Xpress, click here.
which helped to fund the conferences for helping us to make the
events successful. Olympic Solidarity also funded the European A new feature on Tennis iCoach provides users the ability to rate
Coaches Symposium which was held in Tallinn, Estonia in October. content, from 1 to 5 stars. This feature will allow coaches to not
only interact with the site, but also to find content that is the most
Progress with ITF resources throughout 2014 has seen the popular among iCoach members, at the click of a button. The ITF
publication of `Tennis Psychology' and `Developing young tennis Tennis iCoach website remains at the forefront of online coach
players' in e-book format. `Developing Young Tennis Players' was education platforms. The platform hosts up to date and current
recently published in e-book format in Spanish, interested readers research making it easily accessible to parents, players and coaches
can go here to purchase. across the world. Click here for a tour of the site.
It has been another memorable year for Davis Cup by BNP Paribas We hope that you find the 64th edition of the Coaching and Sport
with a record-breaking crowd in the final between France and Science Review interesting and that it will allow coaches across the
Switzerland proving to be the icing on the cake. In total 566 players world to build on and develop their coaching knowledge. We also
from 122 nations contested this year's competition, in which hope that you will continue to make use of all the other coaching
Switzerland, led by Roger Federer and Stan Wawrinka, became only resources provided by the ITF which can be viewed here.
the 14th nation to win the 115-year-old event after defeating France
3-1 in the Final in Lille on 21-23 November.
The Final attracted a record number of spectators for an officially-
sanctioned tennis event with a crowd of 27,448 on Sunday in Lille.
This brought the total attendance for Davis Cup in 2014 to 600,000
spectators. ITF President Francesco Ricci Bitti said: "It has been an
outstanding year for Davis Cup, with strong player participation,
Dave Miley Miguel Crespo Abbie Probert
Executive Director Research Officer Assistant Research Officer
Tennis Development Tennis Development/Coaching Tennis Development/Coaching
A study of the physiological characteristics of tennis
Bernardino S�nchez-Alcaraz Mart�nez (University of Murcia, Spain)
ITF Coaching and Sport Science Review 2014; 64 (22): 3-5
ABSTRACT
This article describes the most important physiological characteristics of tennis players, as heart rate, lactate concentration, oxygen
consumption and subjective perception of effort, depending on the players� age, level, and gender. This information will help coaches
to plan training sessions according to these parameters.
Key words: heart rate, lactic acid concentration, oxygen consumption Article received: 2 August 2014
Article accepted: 30 August 2014
Corresponding author: Bjavier.sanchez@um.es
INTRODUCTION As a general reference, the medium heart rate in tennis players
varies between 140-160 BPM, which is an intensity between 60-
Tennis is an intermittent sport, with effort intervals that vary from 80% of the maximum heart rate (Torres & Carrasco, 2004) however,
low to high intensity due to short and repeated but highly intensive these values may vary depending on the age, if players are playing
actions (Kovacs, 2007). Even though its characteristics in terms of singles or doubles, the weather and even if the player is serving
temporal structure with a number of continuous action intervals are or receiving (Morgans, Jordan, Baeyens & Franciosa, 1987; Reilly
similar, there are some characteristics such as court surface (carpet, & Palmer, 1995; Smekal et al., 2001). Several studies have shown
natural lawn, artificial lawn, cement, clay, etc.), the age, gender, level higher heart rate values for players who are serving than for those
of the player or the match situation that can have a direct impact players who are returning, both in male and female players (M�ndez,
on the characteristics of the effort or even the metabolic pathways Fern�ndez, Fern�ndez & Terrados, 2007; Fern�ndez, Fern�ndez &
used, and the physiological parameters of the players. Terrados, 2007). In comparison, the maximum heart rate based on
other studies show similar results to those in sports like badminton
METABOLIC PATHWAYS USED IN RACKET SPORTS and paddle tennis. Baiget, Iglesias & Rodr�guez (2008) showed
maximum heart rate values that ranged between 189 & 191 BPM in
Competitive tennis, analysed in its formal structure, can be said male competition tennis players, higher than the results of Galiano,
to be a sport in which different metabolic pathways are involved Escoda & Pruna (1996) with values that were relatively lower, 178-
(Sanz & �vila, 2004), due to the interval characteristics of the 180 BPM.
activity. Studies performed on tennis players indicate that tennis
is predominantly an alactic anaerobic activity (70% of the playing Authors Sample Max HR Mid HR
time), with a minor lactic anaerobic activity (20%) and a supporting
aerobic base (10%) (Bergeron, Maresh, Kraemer, Abraham, Conroy Christmass, TENNIS -------------
& Gabaree, 1991; Ferrauti, Maier & Weber, 2002; Weber, Ferrauti, Richmond, Cable,
Porten & Rochelt, 2002). Arthur y Hartmann 8 tennis players 189 � 3 BPM Between 145 � 19 & 158
� 16 BPM
Thus, generally speaking, we can state that the metabolic demands (1998)
in this sport vary between the supply of anaerobic energy during the Men 142.5 � 12.7 &
high intensity phase (for example in direction and hitting changes) Sindal et al. (2001) 20 male players 193 � 9 BPM women 141.5 � 18.9 BPM
and a good aerobic base to recover the energy easily, closing the
lactate accumulation pathway, delaying fatigue and indirectly, Ferrauti, Bergeron, 6 men and 6 ---------- 158.4 � 8.51 BPM
favouring concentration, technical skill and the level of work during Pluim & Weber (2001) women ---------
the match (K�nig et al, 2001; Roetert et al., 1992). The analysis of the
metabolic pathways used in tennis have been analysed according Torres, Cabello & 16 men and 16
to the evolution of those parameters such as heart rate, oxygen Carrasco (2004) women tennis
consumption, (VO2) lactic acid concentration (LA) or the subjective
perception of effort (RPE) and observing the working and resting players
times during competition matches (K�nig et al., 2001; Roetert et al.,
1992). Fern�ndez, Sanz, 20 tennis players Between 180.3 � 6.5 ----------------
S�nchez, Pluim, & 185.3 � 5.3 BPM
Heart rate Timessen & M�ndez
One of the most deeply studied physiological parameters in tennis
is the evolution of the heart rate during a match (Torres & Carrasco, (2009)
2004), since it is one of the few direct physiological indexes that we
can get, and it is related to other cardio-respiratory effort indexes Torres, S�nchez-Pay & 8 male players 183 � 14.85 BPM 134.12 � 8.88 BPM
such as oxygen consumption in sub-maximal effort. Moya (2011)
The study of the heart rate in high intensity exercises such as tennis, Table 1. Most important research related to HR in tennis. Adapted
identifies the characteristics of effort and volume in terms of number from Torres & Carrasco (2004).
and duration (Cabello, 2004). This way, when we study the evolution
of the heart rate in competition, we must analyse the maximal and Lactic acid concentration
medium heart rate in order to determine the cardiovascular load
that the sport demands (Bangsbo, 1996). The study of the medium The lactate concentrations have been used to estimate the intensity
heart rate on its own, does not reflect the intermittent nature of the of the work during sport competition and training and to provide
game (Fern�ndez, Sanz & M�ndez, 2012). information about the energy production through glycolytic
processes (K�nig et al 2001; Roetert et al 1992). It is important to
Due to the intermittent nature of racket sports, including tennis, be careful when interpreting the lactic acid concentration during
there are great variations in heart rate every few seconds. Research matches and training, since results may be affected by several
has shown how a tennis player's maximum heart rate can reach factors such as fitness at the time of measuring (Fern�ndez, Sanz &
between 190-200 beats per minute when rushing to the net or to M�ndez, 2012).
a drop-shot, while during resting periods between points it can
decrease and reach 120-130 beats per minute (Bergeron et al. 1991; Studies made during a tennis match are usually low with averages
Gallach, 1992). between 1.00 y 4.00 mmol.L-1 (Bergeron et al., 1991; Christmass et
al. 1998; Ferrauti et al., 2001; Reilly & Palmer, 1995; Smekal et al.,
2001). However, during long and intense points, it is possible to find
lactic acid close to 10 mmol.L-1 (M�ndez et al, 2007). High lactic
22nd Year, Issue 64, December 2014 3
acid values have also been found in concrete actions like rushing to Fern�ndez, J. A., Fern�ndez, V. A., & Terrados, N. (2007). Match
the net or during a sprint (Gallach, 1992), in highly trained players activity and Physiological Responses during a Junior Female
(Therminarias, Dansou, Chirpaz & Quirino, 1990), or during service Singles Tennis Tournament. British Journal of Sport Medicine,
where values were higher than in return (M�ndez et al., 2007). The 41, 711-716.
authors consider that the possible lactate concentrations do not
remain high during a tennis match due to the ratio between working Fern�ndez, J. A., S�nz, D., S�nchez, C., Pluim, M. B., Tiemessen, I.,
time and rest, in which the latter lasts more than the first (Bergeron & M�ndez, A. (2009). A comparison of the activity profile and
et al. 1991; Christmass et al., 1998; Smekal et al., 2001). physiological demands between advanced and recreational
veteran tennis players. Journal of Strength and Conditioning
Oxygen consumption Research, 23(2): 604-610.
In general, tennis players consume more oxygen (VO2max), which
varies between 47 & 53 mL/kg/min; higher than the sedentary Fern�ndez, J. A., Sanz, D., & M�ndez, A. (2012). Fundamentos del
population 38-42 mL/kg/min (Gonz�lez, 1992). Similarly, research Entrenamiento de la Condici�n F�sica para Jugadores de Tenis en
shows that a male tennis players' VO2max is higher than in female Formaci�n. Barcelona: F�d�ration Royale Belge de Tennis
tennis players and VO2max is significantly higher among junior
players (16-17 years) as compared with children 8-12 years (Reilly & Ferrauti, A., Bergeron, M., Pluim, B., & Weber K. (2001). Physiological
Palmer, 1995; K�nig et al, 2001). responses in tennis and running with similar oxygen uptake.
European journal Applied Physiology, 85, 27-33.
Subjective perception of effort
Effort subjective perception can be defined as `the subjective Ferrauti, A., Maier, P., & Weber, K. (2002). Tennistraining. Aaechen:
intensity of effort, stress, discomfort and / or fatigue during physical Meyer & Meyer.
exercise� (Robertson, 1997). The scale of effort perception in Borg
(RPE) is a simple and reliable method to measure the intensity of Galiano, D., Escoda, J., & Pruna, R. (1996). Aspectos fisiol�gicos del
exercise (Borg, 1998). There is little information to describe the tenis. Apunts, 44-45, 115-121.
response to RPE during a tennis match (Fern�ndez & cols., 2012),
although in competition players, values range from 12-13 in Borg�s Gallach, J. E. (1992). Control y direcci�n del entrenamiento del
scale (M�ndez, Fern�ndez, Bishop & Fern�ndez., 2010), just as there tenis por medios electr�nicos. VII Simposium Real Federaci�n
have been increases in RPE values in response to longer points or Espa�ola de Tenis. Madrid.
more strokes per point (K�nig et al., 2001; Roetert et al. 1992).
Gonz�lez, J. (1992). Fisiolog�a de la actividad f�sica y del deporte.
Practical application for coaches Madrid: Interamericana McGraw-Hill.
The aim of knowing the physiological profile of a player is to
determine the physiological and contextual demands that impact K�nig, D. & cols. (2001). Cardiovascular, metabolic and hormonal
on performance, in turn to adapt training sessions and optimise parameters in proffesional tennis players. Medicine and Science
the player�s profile (Torre-Luque, S�nchez-Pay, Bazaco & Moya, in Sport and Exercise, 33(4), 654.
2011). Thus, with elements like the pulse meter, it is possible to
control training loads for players, allowing for better planning and Kovacs, M. (2007). Tennis physiology. Training the competitive
periodisation for their training sessions. The coach or the trainer athlete. Sport Medicine, 37, 189�198.
can control, not only the training volume with temporal parameters,
but also its intensity through knowledge of the heart rate or oxygen M�ndez, A., Fern�ndez, J. A., Fern�ndez, B., & Terrados, N. (2007).
volume. Activity patterns, blood lactate concentrations and ratings
of perceived exertion during a professional singles tennis
Finally, the regular control of these physiological parameters and tournament. British Journal of Sport Medicine, 41(5), 296-300.
their evolution will help the coach to be aware of the effect of certain
training loads and programmes for physical, tactical or technical M�ndez, A., Fern�ndez, J., Bishop, D., & Fern�ndez, B. (2010).
work on court. Ratings of perceived exertion-lactate association during
actual singles tennis match play. Journal Strength Conditional
CONCLUSIONS Research, 24(1), 165-170.
With the revised data, it is possible to state that tennis is an Morgans, L., Jordan, D., Baeyens D., & Franciosa, J. (1987). Heart
intermittent sport due to players reaching, between 130 and 160 rate responses during singles and doubles tennis competition.
beats per minute during a match and it can be classified as a sport Physician and Sportsmedicine, 15(7), 67-74.
of moderate / high intensity. Further research is still necessary
since, as observed, depending on the gender, the playing surface or Reilly, T., & Palmer, J. (1995). Investigation of exercise intensity in
the level of the players, values vary enormously. male singles lawn tennis. Science and Raquets Sports, 10-13.
London: E & FN Spon.
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Routledge: Taylor & Francis Groupe, 185-189.
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Torres, G., & Carrasco, L. (2004). Fundamentos fisiol�gicos y Torres, G., S�nchez-Pay, A., & Moya, M. (2011). An�lisis de la
exigencias metab�licas del tenis. En G. Torres y L. Carrasco exigencia competitiva del tenis en jugadores adolescentes.
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RECOMMENDED ITF TENNIS ICOACH CONTENT (CLICK BELOW)
22nd Year, Issue 64, December 2014 5
Adaptive and reactive skills involved in the return of serve in tennis
Carlos Avil�s (Madrid Complutense University, Spain), Luis Ruiz-P�rez (Madrid Polytechnic University, Spain),
David Sanz (RFET, Spain) & Jose Navia (Pontificia University of Salamanca, Spain)
ITF Coaching and Sport Science Review 2014; 64 (22): 6-8
ABSTRACT
Some years ago, Nick Saviano notified qualitative observations. In this study we have made a chronometric analysis of the split -step
and the response times of experienced returners to prove qualitative observations in a quantitative way. The research included the
relationship between the different phases of the split-step and the reaction of the players. A 250 fps. high speed camera was used. The
results partially confirm landing with the opposite foot. The ability to adapt the landing of the feet in a functional way was implemented
by three of the five participants. It was also proved that those players who were faster to land, were also faster to react. There was also
a relationship between the national qualification of the participants and the ability to react, since the best male player (M1) and the
best female player (F1) had shorter response times.
Key words: split-step, taking off, adjustments before landing, reaction Article received: 14 September 2014
Article accepted: 28 October 2014
Corresponding author: caviles@pdi.ucm.es
INTRODUCTION and the image after image analysis occured every four milliseconds
(ms) (Figure 1). A Quick Time 7 Player, was used in addition to a
The talent that professional tennis players exhibit on court is the portable MacBook and an auxiliary monitor .
product of many years of practice and implicit and explicit perceptive
motor learning processes. This hard work is directed at becoming Figure 1. The player�s left foot touches the ground 32 milliseconds
a top level returner with the capability of quickly perceiving the before his right foot helping to increase the dynamism of the return
direction of the ball. Top level returners can intuitively return to the
right side and accurately regulate their body movements until the towards his right in the direction of the ball.
time to make contact (Ruiz, 2012). After qualitative observation, Nick
Saviano (2000) stated that top level players unconsciously produce Findings and discussion
functional behaviour to adapt to demanding strokes in different Table 1., Figure 2. and Figure 3. show the main results in time,
game situations. Saviano (2000) states that top level players are percentage and score. Correlating to previous research, participants
able to regulate the landing phase of the split-step, instead of M1, M2 & F2 showed that they took off almost at the time of impact
landing with both feet simultaneously, they touch the ground first of the server (Avil�s, Benguigui, Beaudoin, & Godard, 2002; Avil�s,
with the foot that is further away from the direction of the ball, so as Ruiz, & Benguigui, 2006). Female players F1 & F3 took off late, +72
to start the stroke with an explosive movement towards that side. ms and +76 ms, after hitting. In reference to the time in the air,
Saviano concluded from his observations that when the players are important individual differences were detected among participants.
in the air, they are able to perceive the direction of the ball. It is Player M2 remained in the air 172 ms while female player F1 was in
from these ideas that a chronometric study was performed in order the air only 60 ms.
to increase, by means of quantifiable data, the knowledge about
specific footwork when returning, to prove that experienced returners Participants Take-off Flight Landing Response % landing Scoring
are able to adjust or adapt the landing of their feet during the flight Time Time time time opposite to return
before contacting the ground. Another objective of the analysis was
to find out if the different phases of the split-step (take off, flight and foot 0-4
landing) were relative to the response times of returners.
Male player 1 33 (27) 106 (30) 138 (27) 161 (30) 66.7 1.4
METHOD (M1)
Participants Male player 2 -33 (45) 172 (41) 133 (29) 190 (26) 36.4 0.9
Two male players and three female players voluntarily participated (M2)
in this study. The average age of the participants was 15.4 years with
5.6 years of intensive practice. The participants were selected by Female player 72 (22) 60 (22) 132 (34) 169 (30) 78.6 1.2
the Castilla-La Mancha Tennis Federation and each trained between 1 (F1)
12 and 15 hours a week. The players participating in the research
competed regularly in their respective categories and had a high Female player 24 (54) 134 (37) 159 (29) 234 (32) 75.0 1.5
national ranking in the RFET competition qualification system. 2 (F2)
Material and Procedure Female player 76 (40) 119 (37) 195 (19) 237 (32) 83.3 1.0
The players were filmed with a TroubleShooter TS250MS camera, 3 (F3)
Fastec Imaging (250 fps). The camera was placed behind the
returning player to capture the moment of impact of the server, and Table 1. The three phases of the split-step in milliseconds and
the return shot from the deuce side and from the advantage side. the response time. Typical deviations are between brackets.
Two additional JVC GY-301E and Cannon MV950 (25 fps) cameras Percentages of landing with the opposite foot and the score when
recorded the service landing area and the accuracy of the return returning are on the right. Participants are ranked from the best to
shots. A Sports Radar SR-3600 was used to record the service
speed. The average speed for the male service was 162 km/h and the worst, males (M) and females (F).
for the females was 133 km/h.
6 22nd Year, Issue 64, December 2014
Each player was recorded both as a server and as a returner. When
serving, they were asked to serve a powerful and flat first serve
in a certain sequence and the returner had the open court. The
returner then had to direct the return shots to cones in each corner
of the court. The return was scored between zero and four points
depending on the accuracy. 13 attempts were recorded per player
In relation to the adjustment of the feet just before touching the Stromsik, & Zhanel, 2003; Williams, Singer, & Weigelt, 1998) (see
ground, Saviano�s (2000) observations were confirmed, although Figure 3.).
four participants passed the random level (50%), only three players
(F1, F2 & F3) surpassed 70%. The best player (M1) landed with
his opposite foot 66.7% of the times, so it showed a tendency to
adaptive adjustments just before landing (Table 1. & Figure 2.).
It is possible that the frequency of landing with the opposite foot
benefited some participants because of a late take off. Taking off
later (after impact and initial flight of the ball), the players can get
more reliable information about the direction of the ball. On the
other hand, anticipating take off makes it more difficult to obtain
and use the information about the direction of the shot, and as
a consequence, it is more complicated to adjust the feet when
landing. For example, players F1 & F3 adjust landing on the opposite
foot on 78 and 83% of the services, while player M2, who started
take off prior to the stroke, did so 36% of the times.
Figure 2. Percentage of landing on the opposite foot for each Figure 3. Time to take off, time to land and response time for each
participant. (Surpassing 70% is evidence that this behaviour has a player. Returners who landed earlier (M1 y F1) also reacted faster.
purpose and it is not just by chance). In consideration that the response times of all five returners were
over 160ms, and the accuracy of their responses (98.4%), it is
The great adaptability of the best player is worth mentioning. She possible to infer that the players responses were more adaptive
took off late and to make up for this she remained in the air for an and reactive than anticipatory (see Triolet, Benguigui, Le Runigo,
extremely short time of 60ms. so that she could gain time to land, & Williams, 2013). It is worth mentioning that the players who
touching the ground in just 132ms. Besides, she landed with the were fast, as well as those players who were slow, in landing and
opposite foot 78.6% of the time, only to react in just 169ms. reacting have the chance to adjust their movement when hitting
a return, in order to have accuracy when directing their shots to
If all five participants had landed in a high percentage (over 70%) targets. For example, the fastest M1 player won 1.4 points and F2
with the opposite foot, it would have been possible to consider the with a long 234ms response time was the best performer with 1.5
instant of landing as the true reaction, but this level was surpassed points. The score of F2 indicates that even though she reacted
by all three female (F1, F2 & F3) but not by the two male players (M1 much slower she still had a margin to adjust her movement until
& M2). It is still uncertain what really happens when the returner is in making contact with the ball.
the air, if the muscular pre-activation of the gastrocnemio regulates
the visio-motor function before landing (Nieminen, Piirainen, Salmi, CONCLUSION
& Linnamo, 2013).
In view of the results and the constraints of the size of the sample,
Landing is a crucial moment that illustrates the quickness of the we can state that there were important individual differences
returner and it could be considered strongly connected to reaction. among experienced players. Returners showed adaptive skills to
If this is to be true, the following question could arise: Is there a regulate the time of landing and the hitting movement.
relationship between the landing time and the response time? The
response to this question is affirmative since the best players (M1 & Given the importance of a good return in todays game, the coach
F1) fell rapidly in 138ms and 132ms, and were the fastest in reaction should evaluate and develop the player�s action and reaction
with relatively short response times (see Gillet, Leroy, Thouvarecq, capabilities. Thus, he should examine the different phases of
M�grot, & Stein, 2010). The two female players who landed later the split-step (take off/ flight/ landing), detect if he takes off
(F2 & F3), reacted with slower times closer to 230 ms and similar early, within time or late, or even if he is fast or slow to land and
to those in previous studies (Uzu, Shinya, & Oda, 2009; Vaverka, react. The development of this area is an important aspect of the
progression of a player and to improve their returning game, just
30ms can make a difference.
Acknowledgements
This project benefited from a research subsidy granted by the ITF
Development Department. We would like to thank Conrado L�pez,
Ram�n Guzm�n, Virginia Garc�a, Ana Mart�n, Miriam Palomo, Juan
�ngel Sim�n and Guillermo Viguria for their collaboration and
for the help provided by the RFET Research and Teaching Area of
Castilla-La Mancha Tennis Federation.
REFERENCES
Avil�s, C., Benguigui, N., Beaudoin, E., & Godard, F. (2002).
Developing early perception and getting ready for action on the
return of serve. ITF Coaching & Sport Science Review, 28, 6-8.
Avil�s, C., Ruiz, L. M., & Benguigui, N. (2006). �Qu� conocemos
sobre el comportamiento anticipatorio de los jugadores de
tenis expertos durante el resto de un primer servicio? In D.,
Cabello, A., Lees, G., Torres., & I. Rold�n (Eds.), Colecci�n
Congresos n� 2: IV World Congress of Science and Racket
Sports (pp. 1-10). Madrid: Alto Rendimiento.
7 22nd Year, Issue 64, December 2014
Gillet, E., Leroy, D., Thouvarecq, R., M�grot, F., & Stein, J. F. (2010). Uzu, R., Shinya, M., & Oda, S. (2009). A split-step shortens the
Movement-production strategy in tennis: A case study. Journal time to perform a choice reaction step-and-reach movement in
of Strength and Conditioning Research, 24, 1942-1947. doi: a simulated tennis task. Journal of Sports Sciences, 27, 1233-
10.1519/JSC.0b013e3181dc4622 1240.
Nieminen, M. J., Piirainen, M., Salmi, J. A., & Linnamo, V. (2013). Vaverka, F., Stromsik, P., & Zhanel, J. (2003). Player preparation
Effects of neuromuscular function and split step on reaction for service-return - A biomechanics viewpoint. In S. Miller (Ed.),
speed in simulated tennis response. European Journal of Sport Proceedings of the 2nd ITF International Congress on Tennis
Science, 14. doi: 10.1080/17461391.2013.785598 Science & Technology (pp. 193-198). London, United Kingdom:
International Tennis Federation Ltd.
Ruiz, L. M. (2012). Si quieres decidir bien, no pienses. El papel
de los procesos intuitivos en el deporte. Gymnasium. Revista Williams, A. M., Singer, R. N., & Weigelt, C. (1998). Visual search
Educa�ao F�sica, Desporto e Sa�de, 3, 118-138. strategy in live on-court situations in tennis: an exploratory
study. In A. Lees, I. Maynard, M. Hudges & T. P. Reilly (Eds.),
Saviano, N. (2000). Dispelling technical myths: The split step & Science and racket sports II (pp. 121-129). London: E. & F. N.
racquet preparation. High Performance Coaching, 2, 5-8. Spon.
Triolet, C., Benguigui, B., Le Runigo, C., & Williams, A. M. (2013). RECOMMENDED ITF TENNIS ICOACH CONTENT (CLICK BELOW)
Quantifying the nature of anticipation in professional
tennis. Journal of Sports Sciences, 31, 820-830. doi:
10.1080/02640414.2012.759658
8 22nd Year, Issue 64, December 2014
The Secrets of Spanish Tennis
Chris Lewit (Chris Lewit Tennis, USA)
ITF Coaching and Sport Science Review 2014; 64 (22): 9-10
ABSTRACT
The Secrets of Spanish Tennis are the common core elements that I have observed being taught across the country by different leading
academies and coaching. They are the essence of the Spanish way, if the Spanish way can be effectively defined as a universal system.
I have tried to harmonise the many varied and disconnected approaches that can be found across the country into simple elements that
all coaches, parents, and players around the world can learn and assimilate into their own training systems. This article is an extract
from the book `Secrets of Spanish Tennis� by Chris Lewit.
Key words: Spain, clay, groundstrokes Article received: 10 September 2014
Corresponding author: chrislewit@gmail.com Article accepted: 25 October 2014
INTRODUCTION BALANCE
The core Spanish elements are versatile and easily adaptable and A player needs to move fluidly with dynamic balance and good
can be "piggybacked" onto by other systems, and indeed this is posture. Posture is very important to the Spanish coach. Controlling
part of their inherent value. The secrets are so remarkably easy to the COG (center of gravity) is also very important.
assimilate that I've often remarked that the Spanish way is like the
Buddhism religion, which historically spread rapidly throughout Spanish Coaches are trained to look for imbalances when the
Asia and the rest of the world due to its ease of assimilation and player is on the move, during the shot and on the recovery.
adaptability to other religions. The fact is that systems with intense, Sometimes a player must shift his or her COG, in order to move
strong dogma, whether religious or otherwise, often do not spread quickly to a shot (for example, when sprinting to a ball out wide),
as easily as methods that have some flexibility and do not seek to but more often than not, and especially during the actual shot
supplant other systems entirely. itself, the body should be centered. Rotation should take place
around a central axis.
I have made every effort to highlight commonalities in the Spanish
way that can be easily adapted to current systems to provide Firstly, Spanish coaches look for the contact point to be at the right
supplemental support, although of course, these principles could height. In Spain, the most frequent directive to describe this is:
be used to supplant your current training regimens entirely. "hit the ball between your hip and shoulder." In other words, don't
let the ball drop below your hips or bounce over your shoulders
It is also important to understand that these secrets, while they where it's out of the strike zone (to borrow an American baseball
can be taught as independent subjects, are often integrated into term). Thus the height of the struck ball should be between the hip
complete exercises in Spain. One of the hallmarks of the Spanish and the shoulder for the majority of shots.
way, in general, is that the coaches work simply, without an
overemphasis on only one area, such as technique, for example. Secondly, the distance from the body of the contact point should
Spain has developed a style of training that is successful in part be such that the arm/s efficiently extend so that there is no
due to its, "keep it simple," holistic approach. In an effort to crowding and the arm/s do not get jammed too close to the body.
explain the philosophy and system in Spain, I have necessarily This relates prominently to the technical goal of good extension,
broken the approach into parts, but the reader should remember which I wrote about at length in my last book, The Tennis Technique
that the Spanish way often teaches core secrets all-at-once in Bible.
integrated exercises.
Thirdly, the body should be positioned such that the ball is played
FOOTWORK, MOVEMENT, AND BALANCE early and out in front. One of the most commonly used footwork
teaching phrases in Spain is probably: "get [your body/feet]
Footwork is an obsession for Spanish coaches, as well as many behind the ball," used by Spanish coaches to instruct their players
South American coaches. The top academies and coaches to get into position with their bodies so that the ball can be played
relentlessly drill their players to move quickly, fluidly, and to get out in front.
in position.
When these three criteria are met, the Spanish coach is happy
Why has footwork become such an obsession in Spanish coaching because the body has a better chance to be on balance during the
circles? My best guess is that it probably has something to do with delivery of the shot if the contact point is correct. However, if the
a European culture that tends to focus on playing with the feet contact point is not correct, if even one criterion is missing, the
more than the hands (consider the popularity of soccer in Europe player will most likely lose control of his COG and be off balance
vis-�-vis the popularity of baseball in the US), and with a tennis for the shot. Therefore, there is a critical connection between the
culture that celebrates running and triumphing on the red clay, contact point, the balance, and the footwork; they are intertwined.
where footwork is essential to winning. The clay surface itself is Ultimately, the positioning of the player's feet determines whether
like a second teacher, helping to train the movement and balance the contact point is good, and thus whether the shot will be in
even without the coach's input or drills. balance or not. Spanish coaches become obsessed with the
positioning because, without it, there is often a bad contact point
Any Spanish coach worth his salt will have a toolbox of effective and usually poor balance.
footwork drills (usually hand-fed) that he can use to help a
player with positioning work. I must admit my own coaching has POSITIONING
been greatly enhanced by studying footwork overseas at leading
Spanish academies over the last few years. I have learned the keys Positioning in Spain classically means getting to the ball and
to positioning, moving quickly with balance, and recovering, and I
have picked up many unique drills along the way. getting the feet in a good stance, the proper distance from the ball,
I am proud of the Spanish influences in my system because I so as to allow for a balanced body during the swing. Positioning
believe Spanish coaches have developed some very important
pedagogical approaches and drills to develop this key area. I think can also mean court position (such as whether a player is playing
all coaches could learn how to teach movement and footwork
better by studying the Spanish way. deep in the backcourt or close to the baseline). In this case,
Spanish coaches guide players to be in the right position to attack
or defend, depending on the situation and the type of ball hit by
the opponent.
22nd Year, Issue 64, December 2014 9
The positioning, as per the first definition, can be thought of as the REFERENCES
footwork used to "receive the ball," a commonly used phrase in Bruguera Top Team (2014). http://brugueratennis.com/es
Spanish tennis teaching. Receiving the ball means getting the feet Lewit, C. (2009). Tennis Technique Bible Volume One.
into the right position to allow a good, balanced reception of the Lewit, C. (2014). The Secrets of Spanish Tennis.
incoming flight of the ball. So in Spain there is this obsession with S�nchez-Casal (2014). http://www.sanchez-casal.com
getting the footwork right during the flight of the incoming ball, to
learn how to receive the ball properly, in good position, and then RECOMMENDED ITF TENNIS ICOACH CONTENT (CLICK BELOW)
to send the ball with balance.
CONCLUSION
In my experience studying tennis systems in the US, I sincerely
believe that our coaching curriculums do not spend nearly enough
time working on footwork and especially this critical skill--the
positioning--as they should. Fortunately, Jos� Higueras, as Head
of USTA High Performance Coaching, is working very hard to teach
American coaches how to work on the footwork and positioning
of their players. In fact, the USTA Elite Coaching Department has
adopted many Spanish philosophies and even many Spanish
footwork drills in its new teaching methodology, which is promoted
to US coaches. The USTA has also installed more clay courts at
American national training centers. The USTA has wholeheartedly
and earnestly turned to the Spanish way!
What stance should players use as they get into position? In Spain,
believe it or not, many academies still stress the basic neutral
stance (which I see as almost an anachronism in the modern
game, but the traditional neutral stance is still highly favored and
is often recommended especially for beginners, which I think is
good advice). Bruguera Top Team and S�nchez-Casal are major
proponents of this classical approach, for example. They still teach
neutral stance and stepping in to the ball as the foundational
footwork skill. That being said, it is clear that most Spanish players
evolve to use semi-open and open stances, and they use these
heavily at the top ITF and professional levels, so these stances are
certainly acceptable for higher level players and situationally, on
emergency balls out wide (for example). Open stance can be used
to get more body rotation and thus more racquet speed, power,
and spin as players advance in level. But no matter what the
stance, the positioning must be there, and the balance must be
maintained through the shot.
10 22nd Year, Issue 64, December 2014
Why do some elite players accomplish their Grand
Slam goals while others fail?
Niksa Djurovic (University of Split, Croatia), Ljubica Stanisic (University of Split, Croatia) &
Fabrice Sbarro (S-A Tennis Team, Switzerland)
ITF Coaching and Sport Science Review 2014; 64 (22): 11-13
ABSTRACT
When coaches talk about talent as the most important predictor of success, often we find through practical case studies that this
hypothesis could not be confirmed. The question is: What is talent and are we missing something? The intention of the article is to
accelerate the player's development and ultimately maximise their potential while directing coaches to core problems.
Key words: Grand Slam, player development, psychology, system of criteria Article received: 6 July 2014
Article accepted: 3 September 2014
Corresponding author: niksa.djurovic@gmail.com
INTRODUCTION
What is hiding behind every successful Grand Slam player? Good
genes, coach, talent, or something else? How can the process be
accelerated to maximise the potential of a player? What techniques
and procedures are needed in order to make a player actually start
believing in each shot and every tactical solution? How easy is
it to train the brain to let go of bad habits while simultaneously
increase the level of adaptation to stress and pain and increase
the level of optimism? Why do some extremely talented players
not achieve their potential? In order to answer the question `why
do some elite players accomplish their Grand Slam goals while
others fail?� we must first understand what talents is and how is
can be channeled into success.
Figure 1. The three-step multidisciplinary approach. Figure 2. Specific psychosocial profile set for elite tennis players
(modified according Trninic).
SCIENCE BEHIND GRAND SLAM PLAYER DEVELOPMENT
Training processes (Figure 1.) which connect physiology, psychology The system has been modified by the fact that tennis is an
and biomechanics allow new neural programs to develop. Trninic individual sport and some of the criteria that the authors have
et al. (2010) have proposed a hypothetical model of the specific proposed apply exclusively for team sports. In order to explain
characteristics of elite athletes in team sports which served as how we should approach the player (off the court, on the court,
the basis for the designing this model. The authors have shaped and before/after the match), it's necessary to unmask a player
a hypothetical structure with 17 criteria within the six categories, specific psychosocial profile. The mentioned authors have
while this model (Figure 2.) is designed through 15 criteria within explicitly explained the each of the above criteria as well as their
two categories. scientific background.
An Example
If we observe the obtained results (Figure 3.), it is evident that a
player cannot achieve high progress nor maximise their potential
regardless of their talent, technique, tactics knowledge or level of
movement.
Figure 3. Player psychosocial assessment example.
22nd Year, Issue 64, December 2014 11
Numerous scientific studies and practical experience show Figure 5. an example of pro-tour software.
that inadequate coping with stress has a negative impact on
psychological processes that are important for successful Software must include and produce analysis for all surfaces for
sports performance, such as the focus of attention and level of all opponents. Software should include profile types, factors that
excitement (Nideffer, 1983; Lavallee & Flint, 1996). Furthermore, explain and determine victories and factors that explain defeat,
ineffective coping may decrease sports performance and increase key points including directional patterns, speed and pace of the
muscle tension, while effectively dealing generally has a positive ball for all shots including return, serve and grounstrokes. The
effect on performance in sports activities (Filaire et al., 2009). analysis should include the performance of tactical patterns such
This is one of the most important reasons why some players as serve and volley, chip and charge, net charging on the first shot
accomplish their Grand Slam goals while others fail. Their team is after the serve, net charging during a baseline rally.
focused on the core of the problem (psychosocial skill set) instead
of outcomes, technique changes and numerous drills. Only when Science behind Grand Slam Player Development
the psychosocial part is deciphered, expert teams can start
with development on the court. Under the influence of specific The third step represents multi-dimensional preparation for
technical-tactical and psychosocial preparation, we can develop the match. Tennis is a mental game for all top players, and how
psychological characteristics required to achieve the highest do Grand Slam champions control their minds and thoughts
Grand Slam results. Using scientific analysis tools, expert teams between points and during changeovers is crucial for match
can decipher game styles and use this to explain what to do on outcome (Samulski, 2006). Expert coach needs to apply mental
the court and why. By using AHP multi-criteria decision-making toughness techniques before matches in order to make players
method, it's necessary to find out for each individual player what more focused and confident than their opponents in pressure
pyschosocial criteria is most relative and important and what is situations (Jones et al. 2002). The results of the PTP (psychology,
least important. tactics, physiology) preparation provides feedback, subjective and
The entire training process is set in such a way that the first and objective information, after the match (Samulski, 2006).
second chapter are merged into one unit for example, merging
second serve return, with stress adaptation through anaerobic CONCLUSION
threshold level training or merging transition attack, pain
adaptation through lactate tolerance training (specific drills). In The intention of the article is to accelerate the player's development
accordance with the aforementioned, players are simultaneously and ultimately maximise their potential while directing coaches to
developing necessary tennis, physiological and specific the core of the majority of problems for players. Numerous studies
psychological criteria. This type of training will provide the three in psychology, biomechanics and physiology as well as practical
most important aspects of the training process tests experience have enabled us to create a model that provides
1. Measure the progress progress measurement, neural pathways development and
2. New neural pathways development potential maximisation. At the highest level there are no skipping
3. Maximising player potential. steps, because all mentioned psychosocial variables are trainable.
The first level (multidimensional training process) is the starting
Figure 4. Development on the court / specific technical-tactical point where vision, strong work ethic, trust and appreciation are
and psychosocial preparation. born, while second and third step are designed to provide the
most appropriate learning environment to maximise potential of
Science behind Grand Slam Player Development a player.
The second step is statistical software that allows functions to
be adapted for the use of a personal coach on the professional Acknowledgements
tour. Statistical analysis software can be used to chart numerous We would like to thank Professor Slavko Trninic. Your work has
tennis matches on a point by point basis. Results can include been an inspiration as to what research work can achieve.
quantitative research while others are more qualitative analysing
several players against a specific factor (O'Donoghue & Ingram,
2001). Concrete examples and accurate explanations about
opponents (patterns of play, strengths and a weaknesses), expert
teams must build a strong tactical plan for every opponent (Piles
& Crespo, 2012).
12 22nd Year, Issue 64, December 2014
REFERENCES Filaire, E., Alix, D., Ferrand, C., & Verger M. (2009).
O'Donoghue, P., & Ingram, B. (2001). A notational analysis of elite Psychophysiological stress in tennis players during the first
single match of a tournament. Psychoneuroendocrinology, 34,
tennis strategy. Journal of Sports Sciences, 19, 107-115. 150�157.
Piles, J., & Crespo, M. (2012). ITF Coaching and Sport Science Samulski, D. (2006). Tennis is a mental game � part one. ITF
Review. 56, 9 � 10. Coaching and Sport Science Review, 40, 14-15.
Trninic, S., Kardum, I., & Mlacic, B. (2010). Hypothetical Model of Jones, G., Hanton, S., & Connaughton, D. (2002). What is this
Specific Characteristics of Elite Athletes in Team Sports Games. thing called mental toughness? An investigation of Elite Sport
Journal for General Social Issues, 19, 463-485. Performers. Journal of Applied Sport Psychology, 14, 205-218.
Nideffer, R. M. (1983). The injured athlete: Psychological factors RECOMMENDED ITF TENNIS ICOACH CONTENT (CLICK BELOW)
in treatment. In R.S. Weinberg & D. Gould, Foundations of
Sport and Exercise Psychology (3rd ed., p. 401). Champaign,
IL: Human Kinetics.
Lavallee, D., & Flint, F. (1996). The relationship of stress,
competitive anxiety, mood state, and social support to athletic
injury. Journal of Athletic Training, 31, 296�299.
22nd Year, Issue 64, December 2014 13
What are the key points to win in tennis?
Cedric Roure (University of Western Brittany, France)
ITF Coaching and Sport Science Review 2014; 64 (22): 14-15
ABSTRACT
The purpose of this study is to understand the tennis scoring system in order to highlight the points that have the most influence on the
chances of winning a match. Based on the analysis of point sequences played during men's singles matches at the last French Open,
it has been possible to show the importance of winning points at 30-all and being the first to have the advantage in deuce situations.
This article also discusses the consequences of these findings on tennis players' training.
Key words: big points, match win, training, French Open Article received: 12 September 2014
Article accepted: 20 October 2014
Corresponding author: Cedric.roure@univ-brest.fr
INTRODUCTION matches. In order to get point-by-point score lines, we referred to
the "flashresultats" Website. We took into account three types of
When tennis experts are asked about what differentiates the data to carry out our analyses, namely, the player who wins the
world's top players (the likes of Djokovic, Nadal and Federer) from point at 30-all, the player who has the advantage (following a
the others, they generally mention the mental aspect as being a deuce situation), and the player who has the advantage first in
key factor in success. Coaches and players alike also agree that the game (without the score being 30-all). These three data were
these players are better at playing the big points of a tennis match, studied against the number of games won by each player and their
thus increasing their chances of winning. Even though there role (server or returner). For example, we looked at what player
appears to be a consensus that the ability to play big points well is won the point at 30-all, the server or the returner, and examined
vital, determining exactly what those points are remains difficult. the impact of that point win on the win/loss of the game (a similar
Are "big points" break points at the end of a set? Having the approach was used for the other two data).
advantage on serve at 6-5? Points played at 5-all in tie-breakers? In
order to obtain some preliminary answers, we can first take a look RESULTS
at statistical models specific to tennis to see if these bring new
insight into what big points are. The results are shown in tables indicating the chance of winning
the game from several possible situations. Probabilities are
STATISTICAL MODELS IN TENNIS expressed as percentages and the possible situations correspond
to the three types of data collected using our method, added to
The first statistical analyses based on the distribution of points which are the chances of winning a game regardless of the initial
in tennis and the probability of winning matches date back to conditions. Table 1 shows the data for the matches of the first three
the 1970s with the introduction of the Markov chain (Schutz, rounds (N=112).
1970). Further to these studies, the 2000s saw a series of studies
attempting to model the probability of winning matches. Without Chance of winning the game (%) Server Returner
claiming to be exhaustive, we can mention the work of Clarke &
Dyte (2000) which used the ATP ranking point system as well as For the player who wins the point 88.87% 61.14%
the differences in players' ranking points to predict the outcome at 30-all 66.63% 39.13%
of head-to-head contests. In a similar fashion, Barnett & Clarke 92.61% 65.18%
(2005) used the official statistical data published by the ATP to For the player who has the 74.60% 25.40%
assess each player's chance of victory in a tennis match. Finally, advantage
Barnett, Brown & Clarke (2006) developed a revised Markov chain
model to predict the outcome of matches and determine each For the player who has the
player's probability of winning in a head-to-head contest. Thanks advantage first
to all these models, it is currently possible to track each player's
chance of winning a tennis match in real time. However, these Over all matches
models do not give a picture of the importance that some points
have compared to others. Table 1. Probabilities of winning a game during the first week of
the tournament.
In addition to these studies, the ATP publishes and updates a set
of statistics on matches played by professional players. Coaches Table 2 shows the data for the matches played from the fourth
thus have valuable information, allowing them to analyse their round to the final (N= 15).
players and their opponents with great precision. Among these
statistics, some are considered as playing a major role in the Chance of winning the game (%) Server Returner
probability of winning a match. This applies specifically to the
number of break points converted, the first serve percentage, or For the player who wins the point 92.16% 71.74%
the percentage of points won on first and second serves. However, at 30-all 65.09% 49.23%
no data is available at the present time to identify the key statistic 88.23% 78.57%
that could help determine the probability of winning a match. For the player who has the
advantage 76% 24%
Our objective is therefore to identify a statistic that has a major
effect on the probability of winning a match. By analysing point For the player who has the
sequences played in tennis matches, we want to determine the big advantage first
points that players should pay special attention to.
Over all matches
METHODOLOGY FOR THE ANALYSIS OF SEQUENCES OF PLAY
Table 2. Probabilities of winning a game during the second week
Our method is based on the analysis of point sequences played of the tournament.
in matches of the 2014 French Open men's draw. We analysed
all the matches played during the tournament, i.e. a total of 127
14 22nd Year, Issue 64, December 2014
Results show that in two out of three situations, the player who players improve on serve and return of serve in the deuce court,
wins the point has a higher probability of winning the game i.e. where points are played when the score is 30-all or deuce.
compared to the percentage of games usually won during the Tactical training methods aimed at improving game plans in the
tournament. Whether the player is serving or returning, the two deuce court should therefore be considered. It will be interesting
most favourable situations to win the game are winning the point to do a similar analysis of sequences of play during Wimbledon
at 30-all and being the first to have the advantage. In the first week, to compare results and verify if big points arise in the same
the server who wins the point at 30-all has 14.27 percent more matchplay situations.
chance of winning the game compared to the normal (88.87%
against 74.60%). In the same condition, the returner increases his REFERENCES
chance by 35.74% (61.14% against 25.4%). The player who has the Barnett, T., & Clarke, S. (2005). Combining player statistics
advantage first (following a score of deuce) has 18.01 and 39.78
percent more chance of winning the game as a server and as a to predict outcomes of tennis matches. IMA Journal of
returner, respectively. Results found for the second week of the Management Mathematics. 16 (2), 113-120.
tournament confirm those observed for the early rounds. When
serving, if the player wins the point at 30-all, he has 16.16 percent Barnett, T., Brown, A., & Clarke, S. (2006). Developing a model that
more chance of winning the game compared to the percentage of reflects outcomes of tennis matches. Proceedings of the 8th
games usually won on serve. When returning, the player has 47.74 Australasian Conference on Mathematics and Computers in
percent more chance of winning the game if he wins that particular Sport, Coolangatta, Queensland, 3-5 July 2006, 178-188.
point. As for the player who has the advantage first, he increases
his chance of winning the game by 12.23% and 54.57% when Clarke, S., & Dyte, D. (2000). Using official ratings to simulate major
serving and returning, respectively. tennis tournaments. International transactions in operational
research, 7, 585-594.
Schutz, R. (1970). A mathematical model for evaluating scoring
systems with specific reference to tennis. Research Quarerly
for Exercise and Sport, 41, 552�561.
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DISCUSSION
The point-by-point analysis of sequences of play highlights two
situations that play a particularly crucial role in the probability of
winning games in tennis. Indeed, players who succeed in winning
points at 30-all or those who have the advantage first greatly
increase their chance of winning the match. Compared to the
percentages of games usually won during the tournament, servers
increase their chance of winning by 15% on average in these two
situations. As for the returners, the advantage given by these
situations is crucial since their chance of winning increases by
more than 44% on average. These results highlight two matchplay
situations that can be considered as big points in tennis since they
increase players' chances of winning games.
CONCLUSION
The point-by-point analysis of sequences of play during men's
matches at the 2014 French Open brings new knowledge on the
handling of big points in tennis. This research uncovers a hitherto
unknown dimension in terms of statistics and analysis of high-
level tennis matches. It encourages tennis coaches to adopt
a new approach by teaching how to play big points from the
perspective of typical matchplay situations. Indeed, learning how
to handle the big points will prove more effective if the player is
put in a 30-all situation rather than in the context of head-to-head
contests where the first player to 5 is the winner (as is too often
the case). Furthermore, it is recommended for coaches to help
22nd Year, Issue 64, December 2014 15
Understanding tennis learning: Reflective considerations
on tennis learning theoretical underpinnings
Zoi Papageorgaki (University of Thessaly, Greece )
ITF Coaching and Sport Science Review 2014; 64 (22): 16-17
ABSTRACT
The purpose of this paper is to reflect on some issues that lie under the surface of tennis learning. Such reflective actions are suggested
to deepen our understandings towards our practice and lead to effective tennis coaching.
Key words: coaching, skill-based approach, game-based approach, learning metaphors, reflection Article received: 4 August 2014
Corresponding author: zpapageorgaki@pe.uth.gr Article accepted: 3 September 2014
INTRODUCTION thus focuses on the learning context. Recent studies into tennis
coaching support that a game-based approach underlines the
Coaching as a profession combines knowledge from several necessity of implicit learning (Barrell, 2013; Buszard, Reid, Farrow,
disciplines such as physiology, biomechanics, psychology, & Masters, 2013; Iserbyt, Madou, Vergauwen, & Behets, 2011;
sociology and others and it has been characterised as Pankhurst, 2013; Zmajic, 2013). Through reflecting on this implicit
`evolutionary in status' (Abraham & Collins, 2011). Given the learning function while teaching tennis, it could be claimed that
broad scientific base of the profession, different perspectives are the tennis coach is expected to limit direct instructions and
possible, however, certain commonalities between the teaching create a learning environment in which children can experiment
and coaching profession have been explicitly underlined (Armour, in playing tennis (Barrell, 2013). Given this idea, the game-based
2011). This means that the young learner's needs are placed at the approach theoretically flows along with the participation metaphor
centre and the coach is to serve those needs. The tennis coaching of learning. Moreover, such approaches seem to agree with the
profession does not constitute an exception, similarly to teaching pedagogical orientation of the coaching profession as it was set
in general, it situates the young learner at the core within the out in the first paragraph of this paper.
tennis learning context. As it has been claimed, `the primary job The explanations presented above are considered as stimuli and
of a tennis coach is not solely to teach tennis, but to help their to initiate self-reflection for tennis coaches. Such a thoughtful
students to learn it' (Roetert & Crespo, 2002). Following this approach towards the profession as practitioners who coach
stance, there is a focus on the coaching profession as a profession children, deepens our pedagogical understanding, supports our
which encounters a teaching and pedagogical orientation. As theoretical background and integrates it with practice. These
such, understanding what learning means to children and young practices should be a priority within the coaching and teaching
athletes is crucial for the profession. Below are some theoretical professions (Abraham & Collins, 2011; Timperley, 2008).
basis of current research on learning is presented and the reader
is invited to reflect on how this theory implicates on her or his own CONCLUSION
practice. The issue between a skill-based or a game-based approach gains
a deeper perspective. It is claimed that this deepening in teaching
PERSPECTIVES ON LEARNING AND LINKS TO TENNIS professions, coaching being one of these, is the `basis for making
on-going, principled decisions about practice' (Timperley, 2008).
In recent years in tennis teaching and coaching, tennis experts The two metaphors of learning respond to a broad theoretical
have advocated a shift from skill-based approaches which focus debate. Deepening understanding towards these underpinnings
on specific aspects of the sport, to a more game-based approach and what lies behind the methods being used, empowers coaches
which are closely related to the sport as a playing situation. As in their task.
Pankhurst (2013) suggests, a tennis coach should emphasise,
instead of `what' skills to teach, on `how' children learn skills. The 16 22nd Year, Issue 64, December 2014
former question is related to specific elements of the sport, which
the athlete has to acquire and then transfer into playing situations.
The latter one lays upon the idea that learning is a complex process
for the whole person and teaching and coaching focus on creating
a learning context in which the athlete is situated and develops
her or his sporting ability. There are obvious links between skill-
based approaches to the `what' question and respectively game-
based approaches to the `how' question. Furthermore, since `how'
to teach is addressed as more important compared to `what' to
teach (Pankhurst, 2013), it comes as no surprise the suggested
shift from skill-based to game-based approaches.
It might be helpful to make some reflective comments on how
learning is viewed by these two approaches. The idea behind this
reflection is to deepen the theoretical understanding of learning
processes, something that will have a substantial influence on
practice (Abraham & Collins, 2011; Timperley, 2008).
The research field of learning draws upon a debate of two metaphors
of learning, `the acquisition metaphor' and `the participation
metaphor' (Sfard, 1998). Viewing learning as acquisition implies
that the learning object is to be transferred to the learner through
a cognitive process. This is a traditional view that learning and a
skill-based approach are theoretically underpinned by this view.
On the other hand, the participation metaphor, which has been
more recently evolved, considers learning as a social process and
REFERENCES Roetert, P. E., & Crespo, M. (2002). Myths of tennis coaching. ITF
Coaching and Sport Science Review, 26, 9�10.
Abraham, A., & Collins, D. (2011). Taking the next step: Ways
forward for coaching science. Quest, 63(4), 366�384. Sfard, A. (1998). On two metaphors for learning and the dangers of
choosing just one. Educational Researcher, 27(2), 4�13.
Armour, K. (2011). Introduction. In K. Armour (Ed.), Sport pedagogy
an introduction for teaching and coaching (pp. 1�7). England: Timperley, H. (2008). Teacher professional learning and
Pearson Education. development. International Academy of Education. Retrieved
from http://www.orientation94.org/uploaded/MakalatPdf/
Barrell, M. (2013). Do you get me? Strategies to create learning Manchurat/EdPractices_18.pdf, 23/02/2014.
in Tennis10s! ITF Coaching and Sport Science Review, 60(21),
17�18. Zmajic. (2013). Introducing the net game to starter players. ITF
Coaching and Sport Science Review, 60(21), 12�14.
Buszard, T., Reid, M., Farrow, D., & Masters, R. (2013). Implicit motor
learning: Designing practice for performance. ITF Coaching and RECOMMENDED ITF TENNIS ICOACH CONTENT (CLICK BELOW)
Sport Science Review, 60(21), 3�5.
Iserbyt, P., Madou, B., Vergauwen, L., & Behets, D. (2011). Effects
of Peer Mediated Instruction with Task Cards on Motor Skill
Acquisition in Tennis. Journal of Teaching in Physical Education,
30(1).
Pankhurst, A. (2013). How tennis players learn motor skills: Some
considerations. ITF Coaching and Sport Science Review, 60(21),
6�7.
22nd Year, Issue 64, December 2014 17
Core Stability: Connecting lower core and legs
Carl Petersen (Fit to PlayTM, CAN) & Nina Nittinger (Fit to PlayTM,CAN)
ITF Coaching and Sport Science Review 2014; 64(22): 18-20
ABSTRACT
This article outlines some lower core and leg stability training exercises that will allow players to augment training regimens and use in
home based and travel training. Players can maintain and improve lower core and leg stability with these functional exercises that work
the muscle slings in closed and partially closed kinetic chain movements. These exercises are versatile, practical and transportable
and can be used by a variety of different age groups including developing, professional and senior players.
Key words: core stability, functional strength, pre-habilitation, developing players, injury prevention Article received: 4 April 2014
Corresponding author: carlpetersen2411@gmail.com Article accepted: 3 October 2014
INTRODUCTION it was found that more than 70% of movements were side-to-side
with less than 20% of movements in forward linear direction and
In the past two decades athletes at all levels and from different less than 8% of movements in a backward linear direction (Weber
sports have been bombarded with "core" references and et al, 2007). If the players alignment, balance control, connected
terminology. Core can mean different things to different coaches, core stability, deceleration strength and extended hip stability
trainers and health care professionals depending on their required for these movements is not optimal they may be at risk
training, expertise and experience. For many "core" primarily of injury.
means abdominals and they have had little explanation of what
really qualifies as core and how to target different muscle groups INJURY CONCERNS
effectively. As well, core training is often scheduled at the end Very few competitive players in tennis make it through an entire
of training sessions when the athletes may be too fatigued both season without experiencing some form of lumbar and torso
physically and mentally to carry out the specifically prescribed issues or lower extremity and upper extremity injuries associated
core training. with kinetic chain weakness and/or malalignment syndrome
issues (Petersen & Nittinger, 2013). This malalignment syndrome
Numerous muscles connect the `lower core' lumbo-pelvic-hip can be exacerbated by the unilateral (one sided) nature of tennis
complex and spine and the `upper core' spine, ribs and scapular strokes since in the modern game seventy five percent of the
region. When activated and recruited properly this stable upper strokes are forehand or service motion placing abnormal rotational
and lower core forms the foundation for all movements of the and deceleration stresses on the dominant side (Petersen, 2009).
extremities. The first muscle to be recruited prior to any movement Malalignment syndrome also puts athletes at increased risk of
is the tranversus abdominus which normally switches on in pre- injury and once injured, they are likely to take longer to recover
anticipation of movement. But with dysfunction there is a timing or may even fail to do so at all (Schamberger, 2002). Weaknesses
delay and studies have shown that without efficient and optimal and imbalances of the core have been related to low back pain
recruitment, subsequent spinal dysfunction can occur (Richardson (Akuthoto & Nadler, 2004) and lower extremity injuries (Ireland
& Jull, 1995). et al, 2003). As well, a longitudinal study looked at core stability
parameters and found that weakness in hip external rotation was
The core muscles attach in groups forming functional slings from correlated with incidence of knee injury (Leetun et al, 2004) and
the hips through the lumbo-pelvic (lower core) to the scapula- that decreased hip flexibility in rotation or strength in abduction
thoracic (upper core) regions. Four slings of muscle systems have (positive Trendelenburg) was seen in 49% of athletes with
been described in the literature (Vleeming et al, 1995) (Snijders arthroscopically proven posterior-superior labral tears (Burkhart et
et al, 1993), these are the posterior oblique sling, the anterior al, 2000).
oblique sling, the longitudinal sling and the lateral sling. These
slings of muscles help transfer energy from the ground through the CONNECT THE LOWER CORE & LEGS
legs to the core (trunk) to the upper body and arms. Unfortunately, For tennis athletes, using closed chain free-weight, resistance
many commonly prescribed tennis exercises are machine based band, physio ball or medicine ball exercises with varying levels of
and involve or isolate a single joint only allowing movement in balance stability should be included as exercises to train the lower
one plane of motion. Without full kinetic chain involvement and core and leg stability. These exercises help ensure proper muscle
muscle sling recruitment, they are not effective in connecting the balance in the lower core by emphasizing exercises that are often
core and meeting the specific demands of the modern game. overlooked and add additional force vectors of resistance to
traditional training methods. Utilising closed and partially closed
Tennis is a sport with high demands in all physical components chain exercises with varied resistance to increase stability of the
including flexibility, aerobic stamina, anaerobic power (alactic posterior oblique and anterior oblique sling helps improve the
and lactic), strength, speed, agility and technique. With increased athletes' ability to accelerate and decelerate a swinging motion.
participation by ever younger developing athletes we must be Adding additional exercises to promote involvement of the lateral
proactive in how we train these athletes. We must take steps to and longitudinal sling will further help to connect the lower core
ensure that the windows of optimal trainability (Balyi & Hamilton, and legs improving overall stability.
2003) are met for all of the physical components responsible for
tennis performance. 18 22nd Year, Issue 64, December 2014
Training for tennis requires players to utilize quick movements that
pass through many planes of motion and create rotational and
torsional forces on numerous joints and muscles at the same time.
The average point duration in tennis is reportedly less than ten
seconds (Morante & Brotherhood, 2005; O'Donoghue & Ingram,
2001; Smekal et al, 2001). On average, 3 to 5 directional changes
are required per point, and it is not uncommon for players to
perform more than 500 directional changes during a single match or
practice (Roetart & Kovacs, 2011). As well, in `professional players',
Benefits of Connect the Core Stability Training Figure 1. Assisted Squats.
Training tips:
� Improves postural set and helps maintain correct pelvic - Hang onto something for balance taking some weight through
alignment. your arms
- Switch on your core muscles
� Improves strength of functional muscle slings that connect - With feet pointing straight ahead squat down slowly like sitting
the upper and lower core. down in a chair
- Keep knees aligned over toes but not going past them
� Improves joint and muscle position sense (kinesthetic - Do 2 sets of 10 repetitions with a 2-0-1 tempo.
awareness), helping to center the joint and absorb stress.
Figure 2. Side Lying Hip Abduction.
� Improves stability in a functional hip-extended position. Training tips:
- Start lying on your side with bottom knee bent and top knee
� Improves ability to counter-rotate or dissociate the upper and straight
lower torso and extremities. - Switch on your core
- Point toes down to floor on top leg & raise leg up
� Improves dynamic balance and movement efficiency. - Do 2 sets of 10 repetitions with a 2-2-1 tempo
- Raise up hold for 2 seconds and down slow for a 2 second count.
� Adds additional force vectors of resistance to traditional
training methods. Figure 3. Supine Bridge & Hamstring Pull.
Training tips:
� Helps to improve athletic performance and helps the body to - Start lying on your back with lower leg & feet on a physio ball
be able to react to unexpected events. - Place a ball between knees & squeeze lightly
- Switch on your core muscles
� Provides exercises that are versatile, practical, transportable - Bridge up hips & pull ball towards buttocks & hold for 2 seconds
and affordable. & return to start position
- Do 2 sets of 10 repetitions with a 1-2-1 tempo.
Table 1. Benefits of Connect the Core Stability Training (Petersen &
Nittinger, 2013).
The prescribed exercises should be individualised to the age,
experience and fitness level of the athlete. As a general rule
start with 1-2 sets of 10 repetitions and progress to 2-3 sets of
15 repetitions. Use a slow tempo with emphasis on the eccentric
(lengthening) phase of the exercise. For example doing a squat
with a 3-0-1 tempo it is 3 seconds down (lengthening) 0 hold and 1
second up (shortening).
Precautions for Core Exercises
Resistance Bands Precautions Exercise Ball Precautions
� When using resistance � For individuals new to
tubing or bands, ensure they exercise, check with your
are of high quality. physician before starting this
or any other exercise program.
� Avoid placing resistance
bands near heat or in direct � Check your ball for flaws
sunlight. before each use.
� Avoid sharp objects and � Avoid placing ball near heat
jewellery or in direct sunlight.
� Start gradually and get a � Avoid sharp objects and
feel for the resistance of the jewelry.
bands before progressing or
increasing the tension. � Start gradually and get a feel
for the ball before progressing.
� Regularly inspect the stretch
band or tubing for wear and
tear or weak spots and replace
as appropriate.
� Ensure that it is securely
attached before applying
resistance.
Table 2. Exercise ball and resistance bands precautions.
WARM UP AND BRIDGING EXERCISES
Before starting this or any exercise routine do some light dynamic
warm-up exercises like assisted squats followed by some lying hip
work and some bridging exercises. Your goal during warm up is to
have a light glow on or have sweaty underarms.
22nd Year, Issue 64, December 2014 19
CONCLUSION Morante, S. M., & Brotherhood, J. R. Match characteristics of
professional singles tennis. J. Med Sci Tennis 2005;10(3):12-3.
This selection of lower core and leg stability exercises promote
strength in regions of the lower core and leg musculature that are O'Donoghue, P., & Ingram, B. A notational analysis of elite tennis
often weak as a result of training and playing overuse that results strategy. J Sport Sci 2001; 19:107-15
in fatigue, active trigger points and palpable tissue tension. This
includes muscles the hip abductors (gluteus minimus and medius) Petersen, C., (2009) Coaches Corner- Stable Platform=Better
(Chandler & Kibler, 1992) and the local `inner unit' muscles of the Player. .J. of Med & Science in Tennis Vol.14, No.1.
core (multifidus, quadratus and transverses abdominus) (Kibler et
al, 2006). By utilising simple equipment like balls and bands to Petersen, C., & Nittinger N. (2013) Connecting the Core-Exercises to
challenge and augment the functional slings we can help players Enhance Stability. J. Medicine & Science in Tennis; Feb: Vol:18,
develop a stable lower core and leg platform for the extremities No.1.
to skillfully move in all directions and accelerate and decelerate
efficiently. Richardson, C. A., & Jull, G. A.(1995) Muscle control-pain control.
What exercise would you prescribe? Manual Therapy. 1:2-10.
REFERENCES
Roetert, E. P., & Kovacs, M. S. (2011) Tennis Anatomy-Your
Akuthota, V., & Nadler, S. E., (2004) Core strengthening. Arch Phys illustrated guide for tennis strength, speed, power and agility.
Med Rehabil; 85 (3 Suppl 1); S86-92. Human Kinetics, Champaign, Illinois page-1.
Alyas, F et al. (2007) MRI finding in lumbar spine of asymptomatic, Schamberger, W. (2002) The malalignment syndrome: Implications
adolescent elite tennis players. Br J Sports med;41:836-841. for medicine and sport. Churchill Livingstone 2002.
Balyi, I., & Hamilton, A. (2003). Long-term athlete development, Smekal, G., von Duvillard, S. P., Rihacek, C., Pokan, R., Hofmann,
trainability and physical preparation of tennis players. In M. P., Baron, R., Tschan, H., & Bachl., N. A physiological profile
Reid, A. Quinn, A. & M. Crespo (Ed.),Strength and Conditioning of tennis match play. Med Sci Sports Exerc 2001;33:999-1005.
for Tennis (pp. 49-57). London: ITF
Snijders, C. J., Vleeming, A., Stoeckart, R. (1993). Transfer of
Burkhart, S. S., Morgan, C. D., Kibler, W. B. (2000) Throwing injuries lumbosacral load to iliac bones and legs. 1: Biomechanics
in the shoulder: the dead arm revisited. Clin Sports med 2000; of self-bracing of the sacroiliac joints and its significance for
19: 125-58. treatment and exercise. Clinical Biomechanics 8:285.
Chandler. T. J., & Kibler, W. B.(1992) Strength, power and endurance Vleeming, A., Pool-Goudzwaard, A. L., Stoeckart, R., Wingerden,
in college tennis players. American J of Sports Med; 20(4): 455- J. P., & van Snijders, C. J. (1995) The posterior layer of the
458. thoracolumbar fascia: its function in load transfer from spine
to legs. Spine 20: 753-758.
Ireland, M. L., Willson, J. D., Ballantyne, B. T., McClay & Davis I.
(2003) Hip Strength in Females With and Without Patellofemoral Weber, K., Piepe, S., & Exler, T. (2007). "Characteristics and
Pain. J Ortho Sports Phys Ther. Vol. 33, No. 11. November. significance of running speed at the Australian Open 2006
for training and injury prevention." Medicine and Science in
Kibler, W. B., Press, J., & Sciasia, A. (2006) The role of core stability Tennis 12(1): 14-17.
in athletic function. Sports Med; 36 (3): 189-198.
RECOMMENDED ITF TENNIS ICOACH CONTENT (CLICK BELOW)
Leetun, D. T., Ireland, M. L., Wilson, J. D., et al. (2004) Core stability
measures as risk factor for lower extremity injury in athletes.
Med Sci Sports Exerc 36 (6); 926-34.
20 22nd Year, Issue 64, December 2014
Customer service within the tennis industry
Mark Tennant (Inspire2coach, GBR) & Abbie Probert (ITF, GBR)
ITF Coaching and Sport Science Review 2014; 64(22): 21-22
ABSTRACT
In the leisure industry customer service is a vital part of generating new business and retaining existing customers. Tennis organisations
and teaching professionals are key components in delivering and promoting quality customer service within the tennis industry.
Customer service can be achieved in several ways both on court and off court and is fundamental to the growth and success of an
organisation.
Key words: customer retention, customer service, relationships, tennis industry Article received: 9 October 2014
Corresponding author: mark@inspire2coach.co.uk Article accepted: 28 November 2014
INTRODUCTION HOW TO UNDERSTAND CUSTOMERS
Interestingly, it was not until the late 1980s that service quality Communication is vital between teaching professionals and
became recognised as a major area of research in the sport industry customers in the tennis industry. Teaching professionals should
(Crompton, MacKay, & Fesenmaier, 1991). Since this recognition, aim to create an environment that is safe, fun and positive for
service quality has become an underpinning factor for the success the customer. There has been evidence that suggests that when
of the tennis industry. Nowadays, many sport organisations are a customer is satisfied with the quality of service that they are
competing for customers and attempting to satisfy them through a receiving their behavioural intentions are positive, strengthening
high level of customer service (Yong & Pastore, 2005). Within sport the relationship between themselves and the organisation
organisations, teaching professionals are fundamental to the high (Zeithaml & Bitner, 2003). A teaching professional will achieve this
level of customer service. success through their attitude and reputation both on court and
off court. Building a positive professional relationship will increase
Why is customer service important in the tennis industry? the likelihood of customer satisfaction. A positive relationship can
Customer service can be defined as the provision of service be achieved through managing expectations, goal setting and
to customers before, during and after a purchase (Tennant, creating an engaging environment in which customers can learn or
2014). Customer service quality and customer satisfaction are play the game. Teaching professionals within the tennis industry
central concepts that generate new business and retain existing must identify their audience and adapt accordingly. For example,
customers. Most companies acknowledge that they can only interacting with a junior tennis player and their parents will be
survive when they have customers and can only grow when different to an adult tennis player and their reasons for playing
they manage to retain existing customers and recruit new ones must be taken into consideration. The motivation to participate in
(Schmitt, 2003). The tennis industry is no exception, customers are tennis, in an ever increasing segmented leisure market, can vary
a company�s most valuable asset, therefore the tennis programme between genders and age groups and identifying these reasons
should be structured and managed around them (Schmitt, 2003). will enable the service to be personalised. The personalisation and
Tennis professionals continue to succeed when they focus on the adaptability that the teaching professional demonstrates leads to
customers� experience and key requirements are taken on board a feeling of uniqueness and value for the customer.
to satisfy the customer�s needs. Teaching professionals are key
ingredients that impact the customers� experience and have A negative experience can be detrimental to the organisation or
tremendous impact on the customers� perception of the quality teaching professional. It must be remembered that customers
of the service and subsequent profitability (Fulford & Enz, 1995). are not short on alternatives. If a customer is not satisfied other
options can be sought or even a new activity could be taken up in
their highly prised leisure time. Quality customer service can be
the deciding factor of the success of a sport organisation (Yong &
Pastore, 2005) and longevity of a partnership so an organisation
should never take their customers for granted.
It would be unrealistic to think that customers are satisfied at all
times. Despite a best effort, things might not work out. The criticism
and complaints from customers are extremely useful feedback
if used productively. Complaints can highlight areas that were
previously over looked or deemed as less significant but which the
customers think are important. Complaints and criticism that are
used in a constructive way can be used to give organisations and
teaching professionals a second chance to improve services and
products. It is often an indicator of how a teaching professional or
organisation can differentiate themselves from their competitors
and the feedback is knowledge about what can be done to better
themselves (Martin, 2010).
Figure 1. The important relationship between success and
customers.
22nd Year, Issue 64, December 2014 21
GIVING A GOOD SERVICE CONCLUSION
Teaching professionals have a constant and daily impact on the
Table 1. below shows six recommendations for teaching lives of customers, imparting knowledge, instruction and feedback
professionals to ensure good customer service in provided. both on and off court. Customer service is an essential part of
the tennis industry helping to generate new business and retain
Six ways to ensure quality customer service existing customers. A teaching professional can create a positive
environment that fosters growth and satisfies the customers by
Personal A teaching professional should ensure that all ensuring that they make the customer feel welcome, unique and
equipment personal equipment and teaching aids are in special. It is important to remember that within the tennis industry
excellent condition. It is imperative to make customers have a choice, whether that be to change organisations
sure all balls are in good condition ahead of or to take up a new activity in their leisure time.
lesson time and if the lesson requires the use of
technology, this should be charged appropriately REFERENCES
and in a working order that meets safety Crompton, J. L., MacKay, K. I., & Fesenmaier, D. R. (1991). Identifying
requirements. Lessons run smoothly and safely
when equipment standards are high. dimensions of service quality in public recreation. Journal of
Park and Recreation Administration, 9:15-27.
A teaching professional should be neat, clean and
have a well groomed appearance. An outsider Fulford, M. D., & Enz, C, A. (1995). The Impact of Empowerment on
should be able to clearly identify the teaching Service Employees. Journal of Managerial Issues Vol. 7, No. 2,
professional by their appearance. Effort should be 161-175.
made in order to ensure clean teeth, hair and skin.
Martin, N. (2010). The Marketing Handbook for Sports and Fitness
professionals. Bloomsbury Publishing PLC, United Kingdom
Schmitt, B. H., (2003) Customer Experience Management: A
revolutionary Approach to connecting with your customers.
John Wiley & Sons, Inc., New Jersey.
Tennant, M (2014) Personal communication.
Yong, J. K., & Pastore, D, L. (2005). Hierarchical Model of Service
Quality for the Recreational Sport Industry. A Sport Marketing
Quarterly, 14:84-97.
Zeithaml, V. A., & Bitner, M. J. (2003). Services Marketing:
Integrating Customer Focus Across the Firm. New York:
McGraw-Hill.
RECOMMENDED ITF TENNIS ICOACH CONTENT (CLICK BELOW)
Personal
presentation
Politeness At the end of each lesson, thank them and
establish your next meeting date and time. Your
lesson should be the best hour of the week
for your students. Take time to watch people
play and be willing to offer a quick tip, a word
of encouragement or an acknowledgment of
their progress between their lessons with you.
Punctuality A teaching professional should always be on time
for lessons or appointments and be respectful of
everyone's time by starting and ending promptly.
Preparation Ideally, the teaching professional should aim to
arrive at least fifteen minutes prior to the lesson
to prepare for the arrival of the customer, set
up the court, review notes or ensure that the
facilities are open and ready for play.
Personalisation It is key to initiate the relationship with
friendly introduction. A teaching professional
should greet every customer with a smile and
welcome them to the lesson, whether they are
a returning customer or new. When working with
new customers it is important that a teaching
professional learns their name and uses it
frequently. Personalisation allows customers to
feel at ease and it is recommended that teaching
professionals learn things that are important to
them such as family, career or hobbies.
Table 1. Six recommendations to increase customer service
standard and customer satisfaction.
22 22nd Year, Issue 64, December 2014
Coaches are role models: Tales of influence
Janet Young (Victoria University, Australia)
ITF Coaching and Sport Science Review 2014; 64(22): 21-22
ABSTRACT
This paper examines the notion that coaches are role models and exert considerable influence in the development of a player's tennis,
character and life skills. Suggestions for coaches to be positive role models are presented.
Key words: coach, role model Article received: 1 October 2014
Article accepted: 1 November 2014
Corresponding author: Janet_young7@yahoo.com.au
INTRODUCTION Key Messages to Coaches
All coaches are representatives of the sport and in a position � Being a role model is the most powerful form of educating. Youngsters
of power and influence especially when dealing with young need good models more than they need critics.
impressionable players. Accordingly, it may be timely to review
what role models are, why they are important and what coaches � Your main responsibility as a coach is to set an example
might do to be the best role model they can be.
� A leader's most powerful ally is his or her own example. Leaders don't
What is a role model? just talk about doing something; they do it .
Although numerous definitions of role models can be found in the
literature, all definitions embrace the notion that they are persons � No written word, no spoken plea
who motivate, inspire or assist/support others to engage in similar
behaviour (Payne, Reynolds, Brown & Fleming, 2002). Role models Can teach our youth what they should be.
set standards and are points of reference for others.
Not all the books on all the shelves.
Who are role models?
Parents are generally considered the dominant role models It's what the teachers are themselves.
especially for children. The extent of their influence is thought to
change over time as significant others, such as teachers, coaches, � We need models that are good, positive models.
peers, celebrities, emerge as `persons of influence'. There is
evidence that both boys and girls are more likely to embrace a � Remember that you represent others who are responsible for you as
role model of the same gender. This is understandable in terms of well as yourself and your personal appearance and conduct should
closer similarity and identification with a same-gender role model. not reflect discredit in any way upon yourself or upon those whom
you represent. Cleanliness, neatness, politeness, and good manners
HOW CAN ROLE MODELS INFLUENCE OTHERS? are qualities that should be characteristic of those who are of great
influence on young people and you certainly qualify for that category.
The potential influence of role models is wide and pervasive. Be a good example.
They can impact on another person's thoughts, feelings, values,
attitudes and/or actions. How might they do this? Very simply, any � Changing lives (of those we coach) matters most.
or many of their behaviours are imitated, adopted or embraced by
others. It could be for example what they say, do, wear, how they Table 1. Advice to coaches/teachers from John Wooden (1997)
conduct their coaching sessions/business or how they live their about the importance of being a positive role model/example.
life. In this context it is reasonable to see that not all influences are
necessarily positive. Some may well be negative being unlawful, The messages in Table 1 highlight not only the considerable
unethical, amoral, disrespectful and/or destructive (e.g. well- responsibilities coaches have to those they teach but also the
known personalities who are reported in the media for drink- opportunities afforded in being a positive role model. It is a
driving, match fixing, doping offenses or disorderly conduct). chance to guide, enthuse, motivate, inspire and support players
to develop their strengths and potentials, character and creative
What does this mean for coaches? efforts to be the best they can be, or want to be, both on and off
A coach's influence can extend well beyond the tennis court and the court. It is a chance to have a lasting legacy in the lives of those
into life itself. This is clearly illustrated by Rafael Nadal in his who you coach.
tribute to his coach Toni,
"... everything I have achieved in the game of tennis, all the
opportunities I have had, are thanks to him. I'm especially grateful
to him for having placed so much emphasis from the beginning
on making sure I kept my feet on the ground and never become
complacent... he pushes me always to improve and do better"
(Nadal, 2012, p.263).
The importance for coaches to be positive role models has been
vigorously promoted by the legendary US basketball coach John
Wooden, who is widely credited as the greatest coach of the 20th
century. Some of his key messages to coaches/teachers are listed
in Table 1.
23 22nd Year, Issue 64, December 2014
WHAT CAN COACHES DO TO BE POSITIVE ROLE MODELS? "Jelena was my first coach, like my second mother. We were very
It is critical that coaches are aware of, understand and embrace close throughout my whole life and she taught me a lot of things that
their responsibility to be positive role models. To this end a are part of me, part of my character today. Hopefully I will be able
number of suggestions are presented for consideration in Table 2. to continue with her legacy, because she left so much knowledge
to me, to the people that were close to her. I feel a responsibility
Recommendations (adapted from Wooden & Jamison, 1997; Young, 2009) to continue doing that in the future because she worked with kids
between five and six years to 12 or 13. She dedicated all her life to
�Genuinely care about your players and prioritise the development of your that generation and to tennis" (The Independent, 2014).
players as people �embrace developing character and helping players
develop to their full potential as your most important endeavours Tennis will never look better than when its coaches fully embrace
the opportunity to positively influence others by being the best
�Emphasise and reward a player's best efforts (versus wins/results on the person they can and capably coaching to the best of their ability.
scoreboard) at training and in competition
REFERENCES
�Emphasise and exhibit exemplary qualities including determination, hard
work, resilience, passion, integrity, honesty, fair play, respect, equality and The Independent. (2014). French Open: Tributes paid to coach who
inclusion first saw talent in Novak Djokovic. Retrieved 5 November 2014
from http://www.independent.co.uk/sport/tennis/french-
�At all times adopt lawful, ethical, moral and healthy practices in your open-tributes-paid-to-coach-who-first-saw-talent-in-novak-
coaching and life outside of coaching - commit to the ITF Code of Ethics djokovic-8643033.html
for Coaches (or adapted version adopted by your tennis club or National
Association). `Practice what you preach'. Lead by example (versus directing International Tennis Federation Code of Ethics for Coaches (n.d.).
and instructing) Retrieved 25 November 2014 from http://en.coaching.itftennis.
com/resource-centre/code-of-ethics.aspxpracticalinfo/
�Adopt the `Golden Rule' � treat others as you would like them to treat you. codeofethics.asp
Give of yourself/help others without necessarily expecting any reward
Lyle, J. (2013). Role models, sporting success and participation:
�Learn from the past but live in the present � be optimistic about the future A review of sports coaching's ancillary roles. International
Journal of Coaching Science, 7(2), 25-40.
�Love and enjoy your coaching � appreciate that you are in a `select' group
who has the ability and opportunity to coach. Openly show your enthusiasm Nadal, N., & Carlin, J. (2012). Rafa: My story. London: Little, Brown
for the game and coaching Book Group.
�Commit to professional and personal development (eg. attending training Payne, W. R., Reynolds, M., Brown, S., & Fleming, A. (2003). Sports
courses, reading the latest information in coaching, consulting respected role models and their impact on participation in physical
peers and finding a mentor). Challenge yourself to be a life-long learner activity: A literature review. Retrieved 23 November 2014 from
http://www.sportdevelopment.org.uk/sportrolemodel2001.
�Give your best effort in every lesson and task you undertake pdf
�Prepare and plan carefully and thoroughly. Attend to the detail as little things Wooden, J., & Jamison, S. (1997). Wooden: A lifetime of
matter � get yourself well organised and very good at time management observations and reflections on and off the court. New York,
NY: Contemporary Books.
�Be consistent and keep an even keel under pressure - ensure the valleys are
not too low and the peaks not too high Young, J. A. (2009). The right thing to do. ITF Coaching and Sport
Science Review, 47, 7-9.
�Be patient - good things require time to happen
RECOMMENDED ITF TENNIS ICOACH CONTENT (CLICK BELOW)
�Attend to your appearance (clean, neat etc)
�Be punctual, courteous, thoughtful and respectful. Take a genuine interest
in others and actively listen to what they say. Invite others to share their
views and questions.
Table 2. Recommendations to coaches: How to be positive role
models.
CONCLUSIONS
All coaches are role models (Lyle, 2013). While this carries
responsibilities it also affords coaches opportunities to positively
influence players in developing their games, character and life
skills. Nothing can be more rewarding to a coach than to receive
acknowledgement and appreciation for the critical role he/she
played in a player's tennis and life. Such acknowledgement and
appreciation were clearly evident in Novak Djokovic's recent
tribute to his first coach, Jelena Gencic at the time of her death,
24 22nd Year, Issue 64, December 2014
Laterality in tennis
Eduardo Vicencio (Mexican Tennis Federation, Mexico)
ITF Coaching and Sport Science Review 2014; 64(22): 25-26
ABSTRACT
The purpose of this article is to present an overview of laterality and its influence on tennis strokes. Laterality refers to the preference of
the human being to use one side of the body instead of the other one to perform different activities. This preference is present in daily
activities when we write, play tennis and so on. Everybody prefers to perform activities with one hand, one arm or one leg in particular.
Key words: laterality, ambidextrous, dominance Article received: 1 July 2014
Corresponding author: lalovic74@yahoo.com Article accepted: 15 November 2014
INTRODUCTION Type of laterality Description
Laterality has recently interested many coaches. As regards tennis, Homogeneous When the dominant eye and the hand
research is still at an early stage of development and it will take used to play tennis are on the same side.
some time to gather more scientific research on this matter. The
brain is a complex machine made up of two hemispheres between Crossed When the dominant eye and the hand
which a great communication is necessary for any kind of motor used to play tennis are in different sides.
activity. The left hemisphere, among other things, controls the
right part of the body, while the right hemisphere is responsible Inverted When a right handed or left handed player
for the left part of the body. Although the brain receives visual and has learnt to use his/her non-dominant
auditory information in both hemispheres simultaneously, there is hand to play tennis.
a preference to use one eye or one ear over the other one. It is still
uncertain when the individual acquires a right or a left dominance. Ambidextrous When the dominance of both hands is not
There are explanations based on genetics, on tests made at birth, defined and a player can use both hands
and others that consider that the social and family background to play tennis relatively easily.
have a significant impact on laterality. But, laterality is acquired at
pre lateral stages just as shown in Table 1. Table 2. Different types of laterality in tennis.
Name of the stage Characteristics The coach or trainer must determine their players� laterality. There
exist various tests which are described below:
Mono-laterality Period between birth and 6 months old. There
is no relation between one side of the body and Ocular laterality: Hold a sheet of paper with your hands. Make a
the other one. This stage is marked by the tonic 0.5 cm diameter hole in the centre of the page, focus your eyes
reflection of the neck. on a certain object, stretch your arms holding the paper, look at
the object through the hole. When you can see the object through
Dual laterality Period between 6 months and one year old. the hole, close first one eye and then the other one. The eye that
Asymmetric functioning between both sides of sees the object will be the dominant eye. Another way of doing
the body but no relationship between them. The this is when approaching the paper to the face, the hole goes to a
child works on the middle line of the body but particular eye, this eye will be dominant.
does not go beyond.
Laterality of the shoulder: The player stands facing a wall, his feet
Contra-laterality 1-6 years old. Coordinated and voluntary but parallel to the wall. His hands on the wall with stretched arms. The
asymmetric function. Motor control, posture coach stands behind the player and throws a ball for him to turn
balance and motor coordination are developed. without moving his feet from the ground. If the player turns left , his
Both hemi-bodies work exactly the same way. It laterality is right, if he turns right his laterality is left.
is at this point that preferences of one side of
the body over the other one occur . Manual laterality: We will consider dominant hand the one the
player uses to play.
Uni-laterality After 6 years old. Final process in which
preference becomes dominance. Laterality of the hip: The player stands with his hands on his waist
and his feet shoulder width apart. Then, he will jump and make a
Table 1. Development of laterality stage (Ca�a & S�nchez, 2003). 360� turn without moving his hands. He will turn right and left. If
he finds it easier to turn right in good balance he will have a left
During the process of growth of the human being, laterality is laterality, if his balance is better when turning left, he will have a
one more element of the individual and it will always exist as right laterality.
a fundamental part. Rigal (2012) states that "with the lack of
appropriate stimulation, available at certain ages, nervous cells Laterality of the leg or the dynamic leg: The player makes a scissors
do not evolve and nervous circuits do not achieve their maximum jump with both legs stretched, jumping on a not very high object.
functional value". The lack of a good physical education in early The player will tell the coach which leg he jumps more comfortably
development stages (3-10 years) has a direct impact on the motor with. The first leg to go up will be the dynamic or dominant one.
coordination capabilities and laterality of the individual.
Laterality of the foot or leading foot: It is the foot that will preferably
LATERALITY AND TENNIS be used to kick a football.
Tennis related research has concluded that there exist some parts
of the body like eyes, shoulders, arms, hip, legs and feet that have
a certain laterality and are very important when moving, hitting,
turning and getting a greater space temporal perception of the
body and the environment.
The different types of tennis specific laterality are summarised in
Table 2.
25 22nd Year, Issue 64, December 2014
Table 3 summarises the influence of each type of laterality in REFERENCES
tennis strokes. Ca�a, P., & S�nchez, M. (2003). Influencia de la Lateralidad en los
Type of laterality Influence on tennis strokes Problemas de Aprendizaje.
Homogeneous �Better sense of direction towards the backhand side. Dom�nguez, G. (2010). La lateralidad en el tenis y sus consecuencias
(considering the foot �Tends to use extreme grips like an extreme western como deporte asim�trico. Revista digital. Buenos Aires.
�Tends to hit the forehand late.
and the hand �Feels comfortable hitting a sliced return. Dorochenko, Pl. (2005). El ojo f�sico y el ojo mental. Curso de
�Turns his body quickly to hit a forehand. formaci�n interna Global Tennis Team.
�Hits the forehand better from an open stance.
�Hits the backhand in front and with the centre of the racket. Garipuy, C. (2001). El uso de la lateralidad en el entrenamiento del
�Can hit the backhand from closed positions. tenis. ITF CSSR, 9, 23.
�He structures his tactics and is fond of planning.
�He plays from the baseline and sometimes counter attacks. Holtzen, D. W. (2000). Handedness and professional tennis.
�He plays a down the line forehand and a cross-court backhand. International Journal of Neuroscience, 105(1-4), 101-119.
�He has no problem with the one handed backhand.
�He is a regular player Huyberechts, J. (2006). Psychomotor control by expert and non-
expert tennis players.
Crossed �He has a better sense of direction from the forehand.
�He is a player who attacks. McManus, I. C., Porac, C., Bryden, M. P., & Boucher. R.(1999). Eye-
�He tends to hit a late backhand. dominance, writing hand and throwing hand. Laterality, 4(2),
�A better two handed backhand. 173-192.
�He feels more comfortable hitting a down-the-line backhand and a
cross-court forehand. Rigal, R. (2012). Bases te�ricas de la psicomotricidad. Universidad
�He does not use extreme grips. de Quebec. Canad�.
�He is better hitting the backhand from an open or semi-open
stance. Vicencio, E. (2014). Preparaci�n f�sica para el tenis. Direcci�n
�He can hit the forehand properly from a square stance. Nacional de Tenis. Documento T�cnico n� 5. Federaci�n
�He tends to play forward or inside the court. Mexicana de Tenis.
�He is a creative but irregular player.
Zierof, P., & Porta, J. (2006). La lateralidad, un factor biol�gico
m�s, Revista Slice, a�o 3, n� 14.
RECOMMENDED ITF TENNIS ICOACH CONTENT (CLICK BELOW)
Shoulder laterality �Right shoulder (natural turn towards the left), left shoulder (turns
more naturally to the right).
�Right handed player with a right dominant shoulder (or a left
handed player with a left dominant shoulder).
-It facilitates the open stance forehand.
-It facilitates the rotation of the body in service.
-It does not facilitate an open backhand.
�Right handed player with a left dominant shoulder (or the other way
about).
-It facilitates the open stance backhand.
Laterality of the hip �Right handed player with a right dominant hip (or a left handed
player with a left dominant hip).
-It facilitates the open stance forehand.
-It facilitates impulse and rotation of the body in service.
-It facilitates lateral movement (recovery) after hitting a forehand (if he
is right handed) or a backhand (if left handed) at the time of crossing
the step and recovering.
�Right handed player with a left dominant hip (or the other way
about).
-It facilitates a backhand in open stance.
Laterality of the leg �Right handed player with a left dynamic leg (or a left handed player
with a right dominant leg).
-Facilitates a powerful service with a separate stance.
-It facilitates the backhand impulse in open stance to transfer the force
of the ground.
-It could not transfer the weight of the body from the left leg (dominant)
to the one in front in the backhand with a closed stance.
-It could transfer the weight of the body from the back leg (non
dominant) to the one in front in the forehand with a closed stance.
Table 3. Influence of the different types of laterality in tennis
strokes.
CONCLUSIONS
Even though research on this subject is still at an early stage, we
know that the non-dominant side of the body can be improved by
means of appropriate training. Even though in professional tennis
no laterality can guarantee a better performance, coaches should
know more about it in order to be able to help their players to
provide more accurate and appropriate responses to the demands
of modern tennis.
26 22nd Year, Issue 64, December 2014
Recommended books
TRABAJANDO CON J�VENES TENISTAS
Author: Miguel Crespo, Gustavo Granitto, Dave Miley. Language: Spanish. Type: e-book. Level: Beginner to
advanced level. Year: 2014.
`Trabajando Con J�venes Tenistas� is now available in Spanish online in e-book format. It is an ITF manual for
coaches or parents of tennis players between 10 and 14 years old. It presents the fundamental principles of
the ITF programme of working with tennis players up to 14 years old. The e-book has more than 50 exercises
focussed on junior player development. If you are a parent, player or coach this manual is essential to better
understand the development process of junior players.
THE GOLDEN DAYS OF TENNIS ON THE FRENCH RIVIERA 1874-1939
Author: Alan Little. Language: English. Type: 464 page book. Level: Beginner to advanced level. Year: 2014.
`The Golden Days of Tennis on the French Riviera 1874-1939� relates the �golden� days of the period, from
the beginning in 1874 up to 1939 and the Second World War. It summarises play at some 450 international
tournaments spread along the shores of the Mediterranean, where over the years more and more players
competed from all parts of Europe and a few from beyond. In the rear of the book full tournament schedules
and the names of the winners of all level events can be found. Also presented are histories of the participating
clubs and brief biographies of the principal characters over the years. This is a remarkable insight into the
history of tennis over the last 140 years coupled with photographs of historical tennis players, clubs and
tournaments. A great reference book for any researcher and an invaluable addition for any tennis enthusiast.
TENNIS COORDINATION EXERCISES
Author: Peter Farrell. Language: English. Type: 132 page book. Level: Beginner to advanced level.
Year: 2014.
As a coach, player or parent it is important to understand the significance of coordination in any
sport. Coordination is a principle skill in tennis. `Tennis Coordination Exercises� is a collection of
games and drills designed to focus on key areas of coordination including balance, agility and
speed. Each exercise is explained through illustrations and a description of equipment, progressions
and adaptations. Peter Farrell draws from personal experience and highlights fun and involved
exercises for children. Key pointers are mentioned to ensure safety and full engagement of the
children taking part in the exercises. Advice is given for the coach to guide the drills and indications
for changing and progressing exercises when working with children. A great read for any coach or
parent working with children or developing players.
THE SECRET OF SPANISH TENNIS
Author: Chris Lewit. Language: English. Type: 240 page book and e-book format. Level: Beginner to advanced
level. Year: 2014.
USTA High Performance Coach Chris Lewit investigates the reasons that make the `Spanish way� of teaching
tennis so effective. He accounts personal experiences with top Spanish academies and interviews leading
Spanish coaches. Five years of study and thorough research on the Spanish way of training helps coaches to
understand what it takes to be successful and why the Spanish historically and presently continue to produce
world class players. Numerous drills, techniques and philosophy are discussed providing a clear explanation of
the unique and special training methodology in Spain. An insightful read for any coach looking to expand their
knowledge and philosophy of the game.
STRINGS AND GRIPS
Author: Desmond McLennon II. Language: English. Type: 30 page book. Level: Beginner level.
Year: 2011.
`Strings and Grips� encourages children to have fun playing tennis and teaches the rules of the game. In
a colourful and illustrated book `Strings and Grips� is an informative introduction of tennis for children.
Children learn about how strings and grips work together in the game of tennis and follow character in
a journey through tennis. It is tool to get children up and moving.
PREPARACI�N F�SICA PARA TENIS FEDERAC�ON MEXICANA DE TENIS
Author: Eduardo Vicencio. Language: Spanish. Type: 232 page book. Level: Beginner to advanced level.
Year: 2014.
A physical training manual tailored specifically towards the athletic development of tennis players. The manual
includes drills to introduce starter players to the physical aspects of the game as well as more challenging
exercises for advanced players. Extensive research and intense study of the physical needs to compete at a
high level is complimented by personal experience and hands on training showcased throughout the manual.
Photographs demonstrate good technique and starting/ending positions. Periodisation, nutrition and fitness
testing are covered. This is a helpful manual for coaches, trainers and players to find new exercises to incorporate
into programmes.
22nd Year, Issue 64, December 2014 27
Recommended Web Links
28 22nd Year, Issue 64, December 2014
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29 22nd Year, Issue 64, December 2014