View Full Version : Isokinetic wrist flexion with tennis players

Immo Sauer
08-05-1998, 09:06 PM
Dear all,

I am a student and currently writing my examination paper in order to get
my diploma in Sport science and education at the University of
Saarbrücken(Germany). In this paper I investigate the variation of
strength and power of tennis players of different levels. Therefore I am
doing research about the problem of isokinetic measuring wrist flexion.
For measuring I use the CYBEX 340 dynamometer.
To investigate the wrist flexion performance of the players I am doing the
First I test PEAK TORQUE at angular velocity of 3o deg/s(the slowest speed
possible) to assess the `strength´ (isometric testing is not possible).
Then I test at 3oo deg/s.
To objectify the `power´I cannot use the variable `PEAK POWER´, because I
restrict the flexion movement to a tennis specific range of motion, that
is 9o degrees at most from starting in extreme extension position. For
that reason I compare the PEAK TORQUE at 3o deg/s with the one at 3oo
deg/s: The tested player who gets a better PEAK TORQUE at 3oo deg/s in
relation to his 3o deg/s PEAK TORQUE is defined to have more `power´. In
this way I can also eliminate the influence of `strength´.
Because my literature study so far has not revealed much information about
my(??) definition of `power´, I want to consult the net:
Does anyone know some literature about this definition??? or can anyone
give advice??? What`s your opinion about my study design??
Thank you in advance.
Immo Sauer

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