🎾 Mythfollowthroughptr¶
Giới Thiệu¶
Mythfollowthroughptr — tài liệu 3 trang từ thư viện sách tennis.
Chủ đề chính: Coach
Tóm tắt nội dung (trích từ tài liệu gốc): photo John Togasaki Follow Through by Wayne Elderton and Other Lesson Myths Wayne is a certified Canadian National Level 4 Coach, a PTR Profes- sional 5A, and the Head of Tennis Canada Coaching Development & Certification in British Columbia. He is a popular speaker at coaching conferences and is an international expert on the Games Based Approach and its application to all levels. He has written coaching arti- cles and materials for Tennis Canada, Tennis Coaches Australia, PTR and the Midtown network of tennis clubs. Many of these can be accessed on his website www.acecoach.com Just for the r
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Nội Dung Gốc (Tiếng Anh)¶
photo John Togasaki
Follow Through by Wayne Elderton
and Other Lesson Myths Wayne is a certified Canadian National Level 4 Coach, a PTR Profes-
sional 5A, and the Head of Tennis Canada Coaching Development &
Certification in British Columbia. He is a popular speaker at coaching
conferences and is an international expert on the Games Based
Approach and its application to all levels. He has written coaching arti-
cles and materials for Tennis Canada, Tennis Coaches Australia, PTR
and the Midtown network of tennis clubs. Many of these can be
accessed on his website www.acecoach.com
Just for the record, let me start by saying that every player the net. If you need to make an opponent move, you can control
requires a good follow through. This article is not about saying the ball's direction and send it away from the opponent, etc. To
there is no such thing as a follow through but, that this critical successfully play tennis, players need to know what makes the
tennis movement (and others) are used as inefficient teaching ball do what they want.
points by mistakenly connecting false results to them.
Direct vs Indirect
It is easy to see numerous teaching materials where the follow
through is said to give more power, better depth, more spin, and The follow through (and other movements) while helpful, don't
add height to the ball. It is even believed to control direction (if directly determine what the ball does. Manipulating the ball is
one follows through in the direction they want to send the ball). determined by what the racquet does to the ball at impact. The
In other words, the follow through is touted as a key problem racquet's Path, Angle and Speed (called the P.A.S. Principles)
solving element for players. Even in the 21st century, these mis- are all determining factors for ball control. The characteristics
conceptions are still spread by coaches in lessons, tennis publi- of the ball the player receives also determines what a ball does,
cations and videos. however, for this article, we will limit our discussion to projec-
tion (rather than reception) elements.
Ball Control & Problem Solving The follow through is simply a byproduct, a result, of the PAS
elements. For example, if one has a moderately low to high
Ball control is the #1 way players solve problems on court. For swing path and good speed, a `traditional' follow through will be
example, if an opponent comes to the net (a problem, since they the result (unless a player makes an additional effort to stop the
have a positioning advantage), you can solve the problem by racquet).
controlling the ball's height (send a lob) and make them give up
10 TennisPro January/February 2012 www.ptrtennis.org
Follow though is simply a byproduct, a result of the PAS elements (Path, Angle, Speed of racquet through Impact)
So, what's the harm in using something like the follow through as a Since these movements really don't control what the ball does, try-
ball control teaching point? Imagine a typical lesson. The player ing to use them to control the ball leads to dissatisfaction. What is
wants to learn to hit the ball crosscourt. The coach tells her to line so misleading is that, while it is true having the right PAS at impact
up her feet and shoulders in the direction she wants to hit, impact will give you a follow through, the reverse, (controlling the follow
earlier, and follow through in the direction of the shot. While it is through to somehow control the PAS), will not. The ball control
true all of these elements are helpful, a student can do all of them problems players encounter on the court are only indirectly influ-
and still not have the appropriate racquet face angle at impact (the enced by stroke movements.
true determining factor of direction).
A student should get more information about how to make the ball
The result, a frustrated player who did what the coach said and still do what they want in a lesson than how their technique is sup-
didn't have good results. For many players this is the reason they posed to `look'.
drop tennis. ("What an impossible game. I did what the coach said
and it still doesn't work. This is too tough, I think I will try brain Here are some other `coaching myths' (indirect instructions) out
surgery.") there and the real truth behind the techniques.
MYTHS TRUTH
Turn your hips for more power. One can do both those movements and not hit any harder. Racquet velocity is the true
Bend your knees on the serve for more power. determining factor for power. If movements don't add up to more velocity, no power results.
Step into the ball for more power on volleys This is related to the point above. One can step into the ball and still not send it hard.
and groundstrokes. Transferring one's weight is not a major contributor to racquet speed (although it helps).
Using rotational force (called angular momentum) is more effective for creating speed, and
Use topspin to get more power. top players use a combination of turning and transferring weight (angular and linear force).
But again, no velocity = no power.
Adding spin decreases the forward velocity of the ball. The direction of the racquet speed is
the important point. For example, a 50 mph flat swing will have more forward power than a 50
mph low to high swing. The resulting topspin will decrease the forward power of the ball.
Bend your knees for more height. It is totally possible to fully bend one's knees and still hit the net. What a coach is really trying
to say is, "If you start your racquet below the level of the ball and rise through the impact, this
will send the ball higher. Lowering your body will help to get the racquet lower than the
impact." Great coach, so why do you think telling someone to, "bend your knees" will
automatically do all that?
Stop to be balanced for your shot. The racquet angle and low to high racquet path through the impact is the determining factor
(groundstrokes and volleys) for height.
Take your racquet back. Being balanced is a crucial aspect of any shot, however, balanced and `stopped' are not the
(on groundstrokes) same thing. Stopping will often `put on the brakes' for all the movements required in a stroke.
One can be in `dynamic balance' and still have movement (just watch the pros groundstrokes
and volleys).
This common misconception separates racquet from body movement and leads to overusing
the arm inefficiently in the stroke. It is the body turn (especially the shoulder preparation) that
prepares the racquet more than `independent' arm movements. A coach should look for the
body preparing correctly to set the racquet.
Roll over the ball for topspin, under for Fortunately, this myth was put to rest a long time ago, but it bears repeating. Spin results from
underspin and `around' the ball for serve the path of the racquet and the angle of the racquet being different (e.g. topspin results with a
slice. vertical racquet face and a low to high path).
An impact is only milliseconds long, not enough time to `roll' the ball. On a topspin
groundstroke, the racquet will often roll after a heavy spin shot, but only as the result of the
racquet path and rotation of the forearm. The ball is long gone by the time the racquet rolls.
Trying to roll the racquet will not produce the spin.
(continued on Page 28)
www.ptrtennis.org January/February 2012 TennisPro 11
Follow Through and Other Myths
It is all too easy to fall into the trap of `indirect coaching'. It is a false � Effective
connection between style and results (look a certain way to project The technique must allow
the ball a certain way). Pro players reverse that. They project the ball the player to make the ball
where they want and that's why they look a certain way. This also go the direction, height,
accounts for the big variation in the styles of top players. They all distance, speed and spin
get the physics of striking the ball right, otherwise it wouldn't go it should to perform the
where they wanted. For example, Andy Roddick used to have a more tactic the player selects
`classical' preparation on his serve. He basically went out one day
and tried to find a way to hit it harder and came up with what is now � Efficient photo Charlie Cowens
called the `abbreviated preparation'. The technique must not
stress the body or joints in Pros don't try to look a certain way to
One can also see these style variations in the way top players pre- a way that promotes injury send the ball, they send the ball and as
pare their body and racquet on forehand groundstrokes. They all pre- a result, look a certain way.
pare at the optimal time, however, some prepare their racquet in a big � Economical
loop, some prepare straight back, and some take it down then up. The technique must not
waste movement or
So what does this mean for coaches and players? energy
Coaches need to coach technique based on principles rather than Most coaches know about these principles, and will agree that tech-
conforming people to the `look' of a stroke. As long as the principles nique should be individualized for the player, however, the reality is,
are adhered to, each individual will work out their own unique style. they coach everybody the same way and conform them to the same
Coaches should only make changes when the principles are not style. By using technical principles rather than technical myths,
working, not when a student doesn't look a certain way. coaches can develop technically strong players within their individ-
ual styles.
The key principles that govern technical stroke development are the
three Es:
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28 TennisPro January/February 2012 www.ptrtennis.org