🎾 1 - The Forehand Groundstroke¶
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1 - The Forehand Groundstroke — tài liệu 19 trang từ thư viện sách tennis.
Chủ đề chính: Forehand, Rotation, Groundstroke, Bộ pháp
Tóm tắt nội dung (trích từ tài liệu gốc): Revolutionary Tennis Tennis Instruction That Makes Sense Step 8 The Forehand Groundstroke � Mark Papas mark@revolutionarytennis.com A lot about "the forehand stroke" has to do with traditional footwork, body usage, and weight distribution methods that preceding Steps outlined as counterproductive to efficiency and results. Instead, by moving naturally, moving into the ball, shifting your weight into the contact spot and eliminating body rotation, your forehand will feel and play better no matter what your stroke looks like. But something is missing from all the tennis literature on the subject
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Revolutionary Tennis
Tennis Instruction That Makes Sense
Step 8
The Forehand Groundstroke
� Mark Papas
mark@revolutionarytennis.com
A lot about "the forehand stroke" has to do with traditional footwork, body usage, and weight
distribution methods that preceding Steps outlined as counterproductive to efficiency and results.
Instead, by moving naturally, moving into the ball, shifting your weight into the contact spot and
eliminating body rotation, your forehand will feel and play better no matter what your stroke
looks like.
But something is missing from all the tennis literature on the subject. That something is the
natural use of the arm's leveraging ability during the forward swing. That something maximizes
the stroke's acceleration. That something I call The Neat Stuff.
I'm going to assume you already know about "how" to hit a forehand, that is you're familiar with
the grips, Bollettieri's "Killer" forehand, Tennis magazine's breakdown of various pros' forehands,
and various other ideas proffered by old and young alike.
To refresh, you have the loop backswing and take the elbow back. The open stance. The great
winding, or loading, of the shoulders and hips. The great unwinding of same allegedly for power
and stroke acceleration. The weight transfer toward the opponent. The major wrap around the
neck for the follow through. Finishing with hips and shoulders facing the net or with either the
back shoulder or the back leg or both out forward into the court more than their counterpart.
And it's been like this since day 1 for tennis, some hundreds of years ago.
Yawn.
I believe Bill Tilden's forehand is no different in its structural use of the arm than Andre Agassi's,
only that Andre does everything a lot faster. After all, Mark McGwire's use of his arms on his
swing isn't different than Babe Ruth's, and Tiger Woods' use of his anatomy is not any different
than Ben Hogan's. Today's athletes, it can be argued, simply do things a little faster and for more
duration, but the structural use of the body, specifically the use of the arm, doesn't change because
it can't. If it did, we'd either have tons of injuries or we'd be witnessing a new evolutionary stage
in human development. Baseball pitchers have tweaked their delivery a bit to help reduce rotator
cuff injuries, but for the most part the throwing motion remains the same.
PLEASE REMEMBER
Earlier Steps placed you moving forward into the ball in an attempt to hit the ball off the front
foot with good body balance and little, if any, rotary movement from the body to accelerate the
stroke. Revolutionary tennis advocates that by using your body's linear momentum as your power
source instead of angular momentum your tennis racket can accelerate best in terms of speed and
contact value. If you don't accelerate the racket into the ball, "power" isn't realized, no matter
how good your movement, structure, and weight shift; if the acceleration isn't controlled,
accuracy is lost.
And if you're an advanced player your torso turns a little bit more than your lower body when
preparing the stroke and moving into the ball, and then re-turns to match it during the forward
swing and into contact. At the end of your routine your objective is not to face the net with either
hips or shoulders - if you do `cause you swung so dang hard that's one thing, but if you
incorporate that as part of your swing you're overdoing things and will lose control.
THE PROBLEM
There's a problem in seeing how the arm works on a forehand because the arm looks the same
when the racket's back and when the racket's hitting the ball. When the racket's back the arm is in
a crooked position, at times the elbow lies behind the hand and forearm. And at contact it looks
the same, the elbow is behind the hand and forearm. The photos of Stan Smith and Steffi Graf
bear this out. (Stan's photo by Fred Mullane, Tennis Magazine, 7/89; Steffi's by unknown,
USPTA Advantage magazine, 3/90.)
Many in the tennis teaching community conclude the arm remains in that same crooked position
during the execution of the forward swing. This is known as keeping the arm in a fixed position,
or swinging the arm into the ball. Photo 8A illustrates this concept, the arm remains in a crooked
position between backswing and contact. In other words, the elbow remains behind the hand and
forearm throughout the forward swing.
� Mark Papas Step 8 p.2 /19
Well, there's a whole heck of a lot going on between the backswing and the contact spot. The
arm doesn't remain in a fixed position, it can't. Blink, and the world passes you by, it's been said.
Same here.
WHY IS THERE A PROBLEM?
Much has been made about this elbow business on the backswing because of all the pictures
where the pro's elbow is drawn back looking like s/he's elbowing somebody standing behind them
in the eye. There exists the same image in a baseball player the moment he takes the ball out of
his glove, his elbow points back behind him. But in baseball you don't keep a fixed arm and shove
the ball to "throw" it from that crooked position, and neither should you in tennis.
An arm needs to be flexible if you want to throw a ball or swing an object fast, and keeping the
arm in a crooked position denies this. Forehands are somewhat similar to throwing sidearm,
though I emphasize "somewhat" inasmuch both offer a lateral movement around the body, and
that throwing sidearm accurately is very difficult to do.
The action involved in a backswing involves taking the racket face back, not the arm. And there
are plenty of pro photos showing the elbow not pointing backwards but down. The arm goes
along for the ride, yes, but the racket face is getting ready to hit the ball, and the arm is getting
ready to act like a spring. That the elbow goes back is like the orchestra warming up.
Looking at a photo with a pro's elbow back on the backswing doesn't mean "take the elbow back"
any more than a photo of a baseball pitcher with a straight arm after release means "straighten the
arm to throw a ball." This elbow business is much ado about nothing.
THE ARM FLEXES LATERALLY AROUND YOU
It has been written that your arm is supposed to simulate "a pendulum motion" during the
forehand swing, as in you extend your arm as a unit downward and then swing up. That's okay if
you're bowling, but in tennis the ball's up in the air and moving by you, and the arm has to quickly
swing the racket and configure itself to absorb the ball's impact against it. For quickness,
adjustability, and strength, the arm (forearm) bends at the elbow and both racket and forearm
travel laterally around your body.
More on the pendulum motion follows in Part II.
To illustrate how your arm flexes laterally around you, tuck your forehand elbow against your
side and hold out your forearm away from your body at waist level and your hand straight up and
down. Your arm is now bent at the elbow. If a clock face were beneath your forearm and hand,
your forearm and hand would be pointing at 12 o'clock. Keep the elbow still and swing your
forearm and hand to your left (for righties) toward 9 o'clock. This part's easy, and feels very
natural. Hold this position.
Keep the elbow still and swing your forearm and hand back from 9 past 12 to, say, 2 o'clock, if
you can, or only 1 o'clock. When you swing back toward 2 o'clock your forearm and hand move
past your stationary elbow and biceps (and the biceps flexes to hold its position). Relax the
tension you feel and allow the hand to return to 12 o'clock, noticing the spring action. This is the
first part in understanding how the arm flexes laterally around you.
� Mark Papas Step 8 p.3 /19
THE NEAT STUFF
A powerful forehand uses the arm in much the same way an overhand throw does. Again, apply
what you already know to your tennis game. A weak throwing motion keeps the arm and wrist
rigid, or fixed, and lacks pronation (more on that follows later); an inconsistent throwing motion
finds the arm and wrist flimsy like a pancake, or rubbery.
The big not-so-secret secret from throwing overhand lies in the relationship of the forearm to the
biceps. Say you're holding a baseball and you want to throw it. You hold the ball up by your ear,
turn your shoulders, and your elbow is "back." Your arm is in a crooked position. To throw the
ball the elbow drops and comes forward, your hand with the ball lays back and the biceps moves
forward ahead of the hand and forearm. As in the example above using the clock face to swing
your hand and forearm over to the 2 o'clock position, the forearm first swings back behind the
elbow and biceps that are going forward. Then, like a spring, the forearm reverses this direction
to complete the throwing motion, catapulting forward past the elbow and biceps.
This motion is no different for tennis. Let me explain.
Photo sequence 8B below illustrates how to do this, it illustrates the missing pieces in all
photographic analyses of tennis forehands. Photo 8B1 starts the sequence with the arm in a
crooked position for your backswing, what you always see by itself. 8B2 drops the elbow down
toward the court below you, as in the throwing motion, freeing the forearm to take the racket
fully back behind you, and it lays the wrist back. Again, you're used to seeing this single photo by
itself (Stan and Steffi above).
Now for the missing link. The elbow slides forward and gets in front of the hip (actually in
between photos 8B3 and 8B4 but shown in 8C3 below). This leaves the biceps not straight up
and down but angled forward, 8C3. The elbow and biceps stop their movement, 8B4 - 8B5, to
allow the forearm and hand to catapult the the strings into the ball.
The 8B sequence uses the arm in the same way an overhand throwing motion does. The elbow
drops and comes forward first, allowing the forearm to swing back behind it and the biceps, which
then allows the forearm to re-spring forward past them both. This is the key ingredient in all top
forehands, and what's missing in everyone else's. The teaching term "keep the elbow in" is often
the reason this key ingredient is lacking in so many forehands, it keeps the elbow just behind the
body or to the outside of the back hip instead of allowing the elbow to slide forward. This term is
accurate, the elbow is "in" close to the body, but the elbow is also fluid, it shouldn't remain behind
the body because it'll keep the arm crooked throughout the forward swing as in 8A above.
� Mark Papas Step 8 p.4 /19
Photo 8C better shows how the elbow drops, slides forward, gets in front, or ahead, of the back
hip, then stops to help accelerate the forearm, hand, and racket forward.
Illustration 8D mimics 8C in stick form. The upper arrow in the first frame shows the forearm
will be arching back, the lower arrow shows the elbow will lower. The curved arrow in the
second frame shows the (slight) rotation of the back shoulder to help boost and support the arm's
intended acceleration (of the racket), the bottom arrow that the elbow will slide forward. The
curved arrow in the third frame shows the hand and forearm "throwing" laterally around the body
while the elbow remains still. This third frame represents the crowning achievement in racket
acceleration.
Photo sequence 8E tries, in its own simple way, to help you see this crowning achievement in
racket acceleration. The racket itself travels the most distance in space, and, in decreasing
increments, the hand, the forearm, the elbow, the biceps, the shoulder. The hand/forearm travel
far more distance than the elbow and biceps here.
� Mark Papas Step 8 p.5 /19
Let me shows you some pros in action to better see this really neat stuff.
Here's a nice head to head forehand comparisons with Amanda Coetzer and Chanda Rubin, both
great players. In the first frame for each, the racket has started its descent, the elbow has
dropped. But in the second frame notice the difference in elbow location. Amanda's is much
more forward on her body than Chanda's. You can see how Chanda's elbow is behind to the side
of her body, not in front or ahead of her back hip. In all fairness Chanda could just be hitting late,
but then that's what that's all about, too. (Amanda's photos by Ron Angle, Tennis magazine, 6/98.
Chanda's, by Stephen Szurlej, Tennis magazine, 8/96.)
Jim Courier's elbow clearly moves from behind the side of his body to in front, or ahead of, his
back hip prior to contact. (Photo by Stephen Szurlej, Tennis magazine, 3/97.)
Tommy Haas's
sequence begins
with his arm in a
crooked position,
and ends with it in a
crooked position.
But the middle
photo shows how he
did not keep it that
way through the
swing. By seeing
his elbow pointing down like it does in the middle photo, instead of back, and seeing it so far
� Mark Papas Step 8 p.6 /19
forward, it's safe to assume he uses his arm's leveraging technique correctly. (Photo in Tennis
magazine, 5/00, by Mary Schilpp/clp.)
ROTATION... ROTATION...
Step 4 explained the adverse impact body rotation has on a tennis swing, and that little rotary
movement is necessary from the back shoulder to get the swing going or even to boost it. And if
a little less than that comes from the hips, its controllable, at least. Sadly, though, the idea that if
a little bit is good, a lot must be better. Not.
If the shoulders and hips rotate unabated, is there more power? Maybe in the world of sports
scientists, who calculate that more "power" results when you rotate the greatest number of body
parts and swing in arcs far away from the body. But how far do golfers rotate, or baseball
players? Is their objective to face their playing field at contact? If baseball players felt they'd get
more power by facing the pitcher at contact like a tennis pro facing the net, don't you think they
would? But they don't, and neither should tennis players.
Step 6 showed how the acceleration of an arc (stroke) is greatest when the common point to the
arc remains still. In tennis, this is achieved in one of two ways. Either the common point (the
back shoulder on forehands) remains pretty still after a certain point, or the front shoulder acts as
a brake against it to prevent it from moving too much (common on serves). When the common
point moves around unabated, this acceleration principle is lost.
Today, a lot of rotary movement is sought on the forward swing. Too much. Not only does
contact accuracy and quality suffer (because the ball is angling away from the direction of the
rotary movement), but racket acceleration suffers as well. At the very least players with open
stances and extreme grips should strive not to throw both shoulders around during the swing, they
should strive at least to control the front shoulder and hand. The following photos explain.
Wayne Black's forehand contact
matches up with a Bollettieri Academy
student. Wayne's front arm acts as a
braking action against the back shoulder
to help accelerate the swing, which is
why you can see the front arm, hand,
and shoulder, whereas on the NBTA
student you do not. The bend of
Wayne's front arm and hand mannerism
both still in front or ahead of his body
explain the arm's braking action, if not
the arm would simply have swung
uncaringly around to Wayne's left side
and out of the picture, like the NBTA
student. The NBTA student has rotated
both shoulders around way too much,
like a boxer over swinging, which has pulled his front arm and shoulder out of the picture. Yes, it
could be the camera angle, but I doubt it. (Wayne's photo Tennis magazine, 5/00, Rick
Stevens/ap/wideworld photos. NBTA student, 1/00, Caryn Levy.)
� Mark Papas Step 8 p.7 /19
This is the entire
sequence to the NBTA's
killer forehand. It's
clearly seen the emphasis
is on "if a little is good,
more must be better"
idea to rotation. The
rotation is exaggerated
because the student's
standing still prior to
contact instead of
moving somehow into
the ball, even with the back foot. The web site's instruction for this open stance is to "keep your
weight on the outside foot until after contact," which I don't see happening here. As a result of
exaggerated rotation, the follow through idea becomes similarly exaggerated.
More conflict follows. The
young girl in the open stance
receiving serve in the ad court
is meant to illustrate the value
of (turning and) releasing your
hips into the shot (Tennis
magazine's 101 tips issue,
10/99, photo by Caryn Levy).
The two arrows I added by her
feet show the historical
incongruity of "how to play
tennis." The arrow on the left
shows the ball angling away
from her, that is to her right,
and the arrow on the right
shows the direction of her body
weight shift, which is to her left, perpendicular to the net, following the sideline. The incongruity
of the arrows speaks volumes. The two arrows need to intersect, the body weight shift needs to
be directed at and into the ball at contact (per Step 2, 3, and 4). The photo on the right shows
this happening, my feet (and thus body center) are pointed in the direction of the contact, which
means I'm shifting my body weight there as well. (As a disclosure this isn't an action shot, I
copied and pasted the ball onto my racket. But this form regarding the direction and placement of
both feet and body equals success at contact, which is what Agassi does so darn well on the
return of serve (upcoming in a later Step).
HOW TO ROTATE... the right way
All right, I give in. You want to rotate you say? Let me show you how to and how not to.
If you're one of today's players, you're standing in an open or semi open stance prior to hitting a
the ball. You're not going to step into it with the front foot, you're going to rotate your body in
the direction of your shot, which is toward the net like the NBTA killer forehand above or the girl
in the open stance. Or you're going to rotate so that you bring your back leg (and hip) around
� Mark Papas Step 8 p.8 /19
towards the net just as you'll bring your back shoulder around to the net.
If you're going to rotate, rotate INTO THE BALL as shown in the photo above next to the girl
and not toward the net. If you're going to bring your back leg around, bring it INTO THE BALL,
not toward the net. If you move yourself toward the net, you're shifting your weight away from
the ball because it's moving away from you.
Diagram 8E shows what it's like to bring the back leg
around out of the sideways and open stance positions.
It is very common today to swing that back leg or hip
around in the direction of the net (the red circled
arrows) instead of into the ball. You see this in all
developing players, their back legs swing around to
the net and their forehands suffer. If you need to
rotate please rotate out into the direction of the
contact spot and not inside it toward the net.
Remember, rotation is by definition inward from the
contact spot. Rotating inward from the contact spot
defeats the purpose of empowering the shot.
Rotation in and of itself does not accelerate the racket. Rotation acts more as an initial
combustion agent, or first phase, to racket acceleration. I've mentioned earlier about the slight
re-turning of the shoulders to initiate the forward swing for advanced players and those who want
to be. The same applies to "rotating" the lower body if and when you find yourself either in a
sideways position or open position. In both cases the solution is a little goes a long way.
Obviously if you're sideways you can rotate more than when you're open, but then you always
lose control when doing more.
Power is just awesome when you rotate (though inconsistent by definition) out into the direction
of the contact to encompass the ball and time the hit just right. And then it's tempting to rotate
more to get more. More for more's sake doesn't exist, in so many different variations.
The final point is you actually need to do less rotation to accelerate your racket more. It's not
ironic, it's predictable. The primary responsibility to rotation is to empower the contact spot.
Secondarily, rotation acts as a boosting agent for racket acceleration. If you overdo this boosting
part its friction slows down the racket. Ultimately it is the arm that needs to work efficiently
within itself for acceleration to be realized, and I hope I outlined that clearly enough when
describing how the arm works to swing laterally around the body. This is the reason why you see
players with great forehands so "open" facing the net after the hit. It has been the acceleration of
the stroke (arm) itself that has pulled the body around like this and not the other way around. It's
not about the body turning (rotating) around "and pulling the racket arm along," which is often
stated.
FOLLOW THROUGH
A follow through is verification of the type of shot made, and what follow throughs look like
vary with the amount of time you had to swing forward, the amount of court you had in which to
hit your shot, the amount of time you want your shot to take to reach your opponent, and the
oomph you gave it.
� Mark Papas Step 8 p.9 /19
As such, the endpoints of follow throughs vary, but there are three points to which all follow
throughs should adhere. These three points are themselves flexible, as you'll see. The idea
there's a certain height or length to all follow throughs ignores the simple facts the ball is
ever-changing in speeds and heights against you, and you're placement on the court, hitting
power, ball placement and depth are ever-changing as well.
First, the racket face finishes above the hand (in height above the
court surface, 8B6 above), and not finish below it per the photo on
the right of the NBTA student. I've drawn two white lines to
better see his racket face, which is well below his right hand. The
racket edge does not need to point up directly to the sky, or stop
at a predesignated height. That's exaggeration, and is reserved for
little tykes needing to develop hand and wrist strength to control
the swing, nothing more. When little tykes get used to it they
immediately start learning adult technique.
The next two things go hand in hand. The harder you hit the ball,
the better you become, the more the ball goes out. You adjust, either consciously or
subconsciously, but the same two things occur besides changing your grip. Your follow through
no longer stops (with the arm) extended out away from you body directly toward the net, the arm
and racket start to come back to your body AND the racket faces down.
Not completely down as if looking, or facing straight down to the court by your feet, simply the
racket face no longer finishes on a knife's edge, it tilts to your opposite side. And the arm bends
back into your body, or recoils. Keeping your arm extended out away from you is entirely
arbitrary and forced. No one throws a ball like that. It's both natural for the arm to recoil, and for
tennis players this move withdraws power because the playing surface is so small. In baseball and
golf, with their large fields, you hit the ball and e-x-tend while doing it. If you extended similarly
for tennis, you'd hit it over the fence. More on this follows last in Part II at the end of this
section.
The elbow and arm are kept in front of the body, and the height of the hand varies. The popular
idea to follow through to your opposite ear to hear the ticking of your wristwatch on your
forehand wrist compromises the contact value of what is an ever-changing ball in an
every-changing situation.
TOPSPIN
THE WRIST... ROLLOVER... PRONATION
Spin is simply a matter of the strings brushing against the ball. Without a brushing effect upward,
downward, inward, or outward, what you'd get is a ball hit with no spin. For topspin the racket
face is vertical against the ball at contact, that is straight up and down, and it brushes up because
you're swinging low to high. But there exists great controversy in the teaching community
regarding the delivery method to place the racket face vertically against the ball at contact.
The controversy centers around the use, or non-use, of the wrist. Is the wrist in a fixed position
for both backswing and forward swing, or does it move? Does the rollover action contribute to
topspin, is pronation involved?
� Mark Papas Step 8 p.10 /19
The status quo always cops out by saying pro A hits the ball a ton because he does use his
wrist/rolls over/pronates but that you shouldn't. One well published guy even says to keep the
arm and wrist fixed throughout backswing and forward swing to "minimize every possible chance
for error." Condescending, isn't it.
Some of these status quo guys never had a heavy, world class forehand. Some former top tenners
didn't either, though you'll see them in popular tennis literature showing you how to hit a
forehand. But when greats like Pancho Gonzalez, Rod Laver, Pancho Segura, and Bill Tilden all
talk about using the wrist, I think those who call themselves tennis sports scientists should try to
figure out what they're doing with the wrist instead of disproving what they're saying.
That's right, the popular tennis sports scientists of today, not a world class tennis player among
them, actually try to "prove" that what tennis greats and Grand Slam winners like Gonzalez and
Laver are saying about their wrist movement is wrong. Imagine that. And to those few well
meaning sports scientists who say top athletes can't articulate what they're doing, if you ask the
right questions, and listen to the answers, you'd be pleasantly surprised.
PRONATION
Welcome to the Holy Grail for tennis players, both now and a hundred, or even fifty, years ago.
Back then tennis books didn't mention pronation, they mentioned the "use of the wrist" during the
forehand swing. Now the 1970's came along and the establishment interpreted the "use of the
wrist" to mean wristy, or floppy and declared it unwise to "use the wrist" because it was much too
difficult to control the wristy floppy thing. Hence, tennis students were told to lock their wrists
during the forehand swing to protect themselves from themselves. Ugh.
Well, I believe in you, in your human body. Sure, there are some people who are too this or too
that in their manifestations of physical acts, but they too will follow the yellow brick road to find
their way home.
The "use of the wrist" back then is what we call pronation today. The establishment didn't grasp
it then, and still doesn't now. It's not wrist, it's pronation. Hallelujah.
Pronation means rotating the hand or forearm counter clockwise, so the palm faces forward, then
downward, or, in the extreme, back. This has nothing to do with the degree of rotation,
pronation merely describes the
direction. If your hand was
palm up and you rotated just 90
degrees to make it vertical, that
forward direction is called
pronation. The opposite is
supination, rotating the hand or
forearm clockwise so the palm
either faces upwards or, if it was
facing down to begin with, it
turns upwards to face forward.
Pronation is just a fancy word for rolling the hand and forearm into the ball when you hit it. In
most pros with rocket forehands, like Tommy Haas here, the racket face rolls over, creating a
� Mark Papas Step 8 p.11 /19
unique after-effect. But an after-effect of what, a fixed wrist or a pronating one?
During contact, most of the time the force of the ball tweaks the racket face adversely, either
causing the racket face to close or open. In the exception, if you hit the ball pluperfectly in the
center of the racket with just the right upward angle of lift, the ball doesn't tweak the racket face.
Now your job is to keep your racket face vertically against the ball as you brush up low to high.
How can you do this when the ball's tweaking the racket face? You can either hit the ball
pluperfectly, or you can plan to counter the ball tweaking against the racket face. You can plan to
apply a counter force.
Giving a friend a high five illustrates a counter force. If your hand goes backwards and down on
a high five, you didn't counter your friend's hand. Repeating the action, if you counter(force) your
friend's hand yours remains up high.
Good measures to counter the tweaking of the racket face at contact are keeping your hand firm
and your wrist strong, but these are more reactive rather than active measures. The status quo
asks that you keep your wrist fixed during the whole swing, but that doesn't provide a counter
force to the contact, it merely resists. Pronation applies an active counter force to prevent the
racket face from tweaking at contact.
Does the wrist snap or break? Not at all, that's for a serve, or overhead. Does the wrist roll
over? No, that's an exaggeration. But the counter force of the hand, and thus wrist, plays an
integral part in what is the last ingredient for racket acceleration.
First, your wrist has a natural spring to it. To illustrate, with your forehand elbow by your side,
extend your forearm straight away from you and keep your hand on an edge, straight up and
down. Now lay your hand, or wrist, back. Feel the tension in there. Keep the forearm still and
relax that tension. Hopefully your hand springs back to its original position. If not, repeat the
action but angle your hand downward somewhat before you lay it back.
The wrist-as-spring idea is evident in the preparatory hand action you see in all the pros' pictures
(above) during the backswing, the hand lays back, or the wrist cocks back. The hand, too, flexes
around the wrist, as the forearm around the elbow, the biceps around the shoulder. Denying the
natural use of your hand in this manner is like trying to walk with your shoelaces tied to each
other.
Second, the arm naturally turns inward. When you walk the palm either faces your leg or behind
you. If you extend your arm away from you palm side up, you'll lower the arm and the palm
rotates to face your body. The arm naturally pronates.
Adding wrist flexibility and pronation with an arm that is flexible throughout the swing creates the
proverbial cannon.
Is this cannon hard to set up and fire? Heck no, just let nature takes its course. Lay the wrist back
to start, keep it strong and vow not to flop it, and you'll naturally access it during the motion.
Again, less is more. Oh you'll hit the ball out in the beginning, that's expected, like what happened
when you first hit the gas pedal on a car. But you can handle it. And pronation? Just simply roll
the racket or the hand into the ball on the forward upward swing, that's all. Counter the ball,
don't ever try to keep the wrist or arm fixed. More follows in Part II at the end of this section.
� Mark Papas Step 8 p.12 /19
CRITICISM
The tennis establishment says pronation isn't responsible for creating topspin. The establishment
opines that topspin is created solely by a vertical racket face brushing low to high, and that to best
achieve this the arm and wrist will remain fixed during the swing. The following is photo
evidence used to support this belief. I'll include the accompanying quotation and you can figure
out what's being said, not said, and what's being inferred.
"All that talk about how the racket face "rolls over" the top of the ball to impart topspin is a myth.
In this photo (the first of this nature ever recorded), the hitter tries desperately to roll the racket
face over the top of the ball - but to no avail. The racket face is vertical at impact as it moves
from low to high. High-speed motion pictures also substantiate that the ball leaves the racket face
long before the racket face begins its rollover." (Photo by John G. Zimmerman, published in
1977, Tennis For the Future, by Vic Braden, and the one following.)
This proof is used to show how topspin is not created by the racket face going over the ball but
by the racket face being vertical against it. Never mind it is admitted the racket face clearly rolls
over after contact, it's just that the establishment feels this rolling over action has nothing to do
with the stroking dynamic to place the racket vertically against the ball to produce the topspin.
(The inset photo shows the contact and the racket's angle immediately following. I feel the racket
face has opened a bit, gone backward, in this first frame after contact, which is predicted and
shown in other hitting models, but I could be imagining it. If it is, it explains the presence of the
rollover, or pronation, prior to contact.)
The establishment then uses this "proof" to structure a unique topspin schema, shown in the next
photo. Here the racket impacts the ball vertically, and the hand and forearm, which remain fixed
throughout, will not roll over even after impact. Curious, though, how the racket is more than
vertical at impact, it's rolling over, and then rights itself later?
� Mark Papas Step 8 p.13 /19
According to the establishment's sport scientists who undoubtedly influenced an entire generation
of players and teachers, pronation is not absolutely necessary to create topspin. That is, a vertical
racket face creates topspin. While literally true, it is shortsighted.
Let's talk
karate
punch for a
second. If
you were to
take a stop
action photo
of a karate
punch the
moment it
struck a
wooden
board held
out in front
of the
student, the
fist would
be flush, or
square,
against the
board. The knuckles go left to right, the palm is down. Does this mean the hand was so placed
from the beginning when the student threw the punch? No. The karate student starts with his fist
palm up, held by his side, and then corkscrews his arm (pronates) to deliver his punch with the
palm facing down at contact.
The same happens when you throw a baseball. The same is acknowledged to happen on a tennis
serve, that is pronation. Well, pronation is how the arm delivers itself for strength. And it holds
for all forehands, except slices.
REVOLUTIONARY
The tennis establishment has said that pronation is not mandatory on a forehand to produce
topspin unless "a person were hitting with a racketface pointed upwards and was forced to roll the
forearm in order to properly position the racket [vertically] against the ball." This was included in
an email sent to me January 29, 2001. As seen earlier, pointing the hand upwards is the direction
for supination, that is rotating the hand in the clockwise direction. The tennis establishment is
saying pronation is not mandatory to produce topspin unless supination occurs first. This in fact
happens.
The following sequence from Steffi Graf shows her racket face first pointing upwards during the
forward swing before she corrects (rolls) it to place the racket face vertically against the ball.
� Mark Papas Step 8 p.14 /19
The angle of her racket face in Frame 1 is perpendicular to the court below, using a north south
axis, or top to bottom. In Frame
2 this angle has changed, the
racket face is leaning back, or
open, or pointing upwards
slightly. The hand has
supinated, it rotated the palm
upward. Frame 3 returns the
racket face perpendicular,
closing it prior to contact. What
does this mean? It means the
hand reversed its direction to
place the racket face vertically
against the ball, it means the
hand pronated. The signature
proof of this shows up in the
contact shot and follow through.
The contact photo is missing
from this publication, I couldn't
track it down. Frame 4 is post
contact, and the racket face,
predictably, has opened a bit, but
it's nowhere near the very open
angle of Frame 2, it is still being held in the "vertical" position. Frames 5 and 6 find the racket
face more than perpendicular, confirming what the hand was doing between Frames 2 and 3.
More follows.
What about the players who keep their racket facing down on their backswing? They, too, wind
up rotating the palm upward to place the racket properly against the ball. No, not pointing
upward, just rotating the hand in that direction (as opposed to down). Consider: Tommy Haas
above has his racket very closed in frame 1, more than perpendicular, and in frame 2 it is
perpendicular. Hence, logically, it must have opened.
In Tennis magazine's march 2001 issue, there was a look into tennis' future. In a sidebar was a
stick figure of a top pro hitting a forehand, and I include here the representation from the
company's own website (identified below) because it's clearer than scanning the magazine's image.
Notice the angle of the racket face in the first frame, it faces down somewhat, denoted by the
� Mark Papas Step 8 p.15 /19
narrow looking racket face. In the second frame the racket face isn't as narrow anymore because
it has opened. The third frame finds the face close to perpendicular. The racket hand supinates,
or rotates upward/forward, in this sequence to place the racket vertically against the ball. For
close readers, notice how the green dot representing the elbow in the middle frame moves to get
in front of the back hip, as shown in 8C above.
Very interesting, isn't it. And if you really don't see it, this additional frame showing what each
racket angle would look like in the backswing if the angle did not change at all during the forward
swing may clarify it.
The top racket belongs to the first frame, the racket is
back and faces down somewhat. The middle racket
belongs to the second frame, and I matched the tilt to
the first racket. The bottom racket I drew and
corresponds to the contact angle in the third frame
above, close to perpendicular, and I did my best to be
honest with it. It's supposed to angle toward the
viewer a bit. Examining the racket face's angle from
top to bottom, the racket face opened in order to place
the racket face perpendicular against the ball for
topspin. The hand supinates, or opens up, during the
forward swing. It doesn't point upwards to the sky,
but it's in the process of rotating upward from its downward facing position.
THE LOGIC
Now, let me ask you, is the racket open at contact? No, it's vertical. Why doesn't the racket face
open up at contact if the hand opens to begin with when placing the racket vertically against the
ball? Because the hand stops that movement prior to contact. Is the racket face open then after
contact? No, it rolls over. Why? Because at contact the hand is going in that direction, that
roll-over direction. And that direction is called pronation.
Or look at it this way. Which is easier. Will the supinating hand stop its upward rotation on a
dime and at just the right angle and stay fixed that way when the ball tweaks the racket face, or
will the hand reverse itself to counter both the upward momentum from supination and counter
the tweaking of the racket face at contact (pronation)? Hey, just look at the follow through, that
roll-over thingie. Why is this so hard for the tennis establishment to grasp? Beats me.
The answer then is clear. Pronation "properly positions the racket against the ball" because the
racket "has been pointing upwards first," using the establishment's own criteria for accepting the
idea. Please notify any tennis establishment members you know of (easily found in the magazines
and on the shelves), and tell your own local pro about this argument. You'll be helping yourself
and all those young kids behind you. In addition, please contact the good guys at TennisWeek,
and Tennis Magazine to enlist their help and put an end to the medieval belief that pronation is not
a part of a tennis forehand groundstroke.
The good people of Bio-Kinetics Inc., of Salt Lake, Utah, are responsible for the stick sequence
above, and Mr. Paul Reddick took the time to inform me that, in their view, the racket opens
"because the hips turn to strike the ball," and that the racket face closed into the ball because of
� Mark Papas Step 8 p.16 /19
the symbiotic relationship of the two elbows. I argued it was because the hand pronated, and the
response I got was that pronation is a non-teach thing. Bio-Kinetics, Inc. is heavily into baseball
and offer that some things are non-teachable things, such as pronation, as in when throwing a ball.
I proposed that while in baseball pronation may be a non-teach thing, in tennis pronation on a
forehand and serve is a must-teach thing, and we found common ground. I'm glad I found them,
and I thank Tennis magazine's editors for that.
One last word. The establishment responds that the roll over obviously seen after contact is about
releasing the forces of the musculature, and they further state that Andre Agassi "went nearly
eighteen inches past the impact point before his wrist made a single degree of displacement [that
is pronation]," and that there was no displacement before contact as well. And in the late 19th
century we used to think a galloping horse always had one hoof touching the ground at all times.
OVER THE BALL AND UNDER THE BALL
The next photo is of Monica Seles, and it clearly shows the angle of her racket to be more than
vertical on the ball. Underspin for groundstrokes is known as slice, and its execution is commonly
understood. The racket face is beveled, and you hit under the ball. Of course you don't literally
hit the point farthest beneath the ball, you'd send it straight up like a geyser. The image is that
you hit in the direction under the ball as opposed to in the direction over the ball.
Topspin is also known as overspin because the racket strikes the ball by going in the direction
over the ball. It doesn't strike the ball literally on the top, that would send the ball down to your
foot, but the image is that the racket
moves from low to high brushing the ball
upward and in the direction over the ball.
8F shows the image of how the racket
goes "over" the ball for topspin, regardless
if it's rising or falling. Enough said.
DISCIPLINE
I hope this has been of some use. As mentioned from the very beginning in revolutionary tennis,
what helps your stroke the most is improving the use, response, and structure of your body
toward a ball angling away from you, as well as simplifying where to place the ball.
Strokes don't exist in and of themselves, they are dependent on the body, on its locomotion,
balance, structure, sensory input. Strokes require their own self discipline, and stroking requires
body self discipline. Not every ball can he hit large, not every deal is a gangbuster.
But you must improve the use of your arm to improve your forehand.
� Mark Papas Step 8 p.17 /19
ADDENDUM
In this montage of shooting a basketball it appears there is little if any wrist movement at the
release point, similar to Vic Braden's idea that on a forehand topspin "there is not a single degree
of wrist snap at the impact point." Even though we know the wrist snaps when shooting a
basketball, evidenced by the characteristic flop-over after the shot is made, this basketball
montage could be used to argue the opposite, that is the basketball player's wrist remains locked
or fixed throughout the upward delivery. It can then be revealed the "secret" to shooting is the
moving or straightening of the arm as a lever like a catapult and that the wrist snap seen after the
release has nothing to do with the shot but has to do with the release of natural forces. Then it
becomes a "myth" to snap the wrist when shooting a basketball. It's okay to laugh, but this is
what happens to us in the tennis world regarding a topspin forehand groundstroke. Using the
word "snap" for a tennis forehand's wrist movement is exaggerated, but it does work on a
basketball shot even though you don't see it happening until after it's happened.
I'm adding shots of Sharapova, Roddick, Agassi, and Federer forehands milliseconds after contact
that clearly show the player's stroke and strike pattern. The racket face rollover is not part of a
secondary strike pattern, it is primary and the act begins prior to contact. Vic Braden's statement
above, "The racket face is vertical at impact as it moves from low to high. High-speed motion
pictures also substantiate that the ball leaves the racket face long before the racket face begins its
rollover" was based on his singular attempt to document topspin in 1977. In the face of so much
photographic data offering more information on the topic, and considering he will not entertain
any other interpretation of his own data and that his attempt was not a true experiment since the
method was not testable by peers, I would conclude his statements are to be interpreted as belief
and not science.
You don't snap the wrist on a groundstroke, far from it. But the wrist is being used, it moves, it
flexes, it is not held fixed or locked. There is both flexion and deviation during the forward swing
prior to contact. Freedom from ideologues. Freedom from demagoguery.
Freedom.
� Mark Papas Step 8 p.18 /19
[photos montage forehand: Sharapova by Gina Ferazza, LA Times, 3/19/06; Roddick by Mark Baker, Associated Press, in LA
Times, 1/20/06; Agassi and Federer Getty Images uncredited from the usta.com web site.]
OLD THINK NEW THINK
� elbow back � take racket face back
� keep wrist fixed � wrist flexes back
� swing like a pendulum, arm fixed � wrist flexes back
� keep elbow "in" � elbow slides forward
� hit topspin with fixed wrist � pronate for flat or topspin
� follow through up and out, or � follow through arm bent in front
extend toward opponent, or
wrap around behind you of body, racket face down a bit
� rotate to the net and above the hand
� if you rotate, rotate to the ball
� Mark Papas Step 8 p.19 /19