|
In
this lesson we go into the ballistic movement for the forehand in
more detail. In particular, reflexes are the most primitive and simple
movements
in the motor system. Ballistic reflexes ore those reflexes that control
sudden violent movements needed to act quickly. While these movements
have their origin in the evolution of humans as responses to danger,
if one can utilize such a movement in a tennis stroke it will be
very accurate and produce stable, controllable speed. IN the video
and rollovers
below we illustrate how this is done in the forehand western grip.
Other grips follow the same principles.
The key is to lay back the wrist as as far as possible, holding the
racquet firmly and then learning to rapidly squeeze the racquet. This
squeeze causes the racquet to advance as a reflex, not as a deliberate
action. See the two figures below.
 |
 |
| Lay back wrist as far as possible |
Rollover Example |
In these figures we are holding the racquet so that the movement is
visible rather than as we would when striking the ball. In the video
are two views from natural striking positions.
 |
| Click on Image to See Video |
From the figure above we can clearly see that the simple act of squeezing
the racquet causes it to move a good distance quickly. This movement
is not a wrist slap, since the wrist is not being engaged actively.
It is a pure reflex activated by squeezing the racquet. This action should
occur at the last possible instant before striking the ball to produce
extra acceleration that is both controllable and stable. further the
act of squeezing the racquet focuses the visual processing on the ball
more effectively, thus resulting in a cleaner hit.
In short the ballistic movement serves two purposes: It provides additional
acceleration and focuses visual processing.
|