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The Effect of Short-Term Isokinetic Training on Force and Rate of Velocity Development

BROWN, LEE E.1; WHITEHURST, MICHAEL2

The Journal of Strength & Conditioning Research: February 2003 - Volume 17 - Issue 1 - p 88–94
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This study determines the effects of short-term isokinetic training on rate of velocity development (RVD) and force. Three groups were pre- and posttested for knee extension RVD and force at 1.04 (slow) and 4.18 rad·s-1 (fast) on a Kin-Com dynamometer. The slow and fast groups completed 2 days of velocity-specific training, whereas the control group did not train. Four-way analysis of variance results demonstrated significant (p < 0.05) decreases in RVD between pre-and posttests for the slow group at the slow velocity (RVD—1.25 ± 0.04° vs. 1.08 ± 0.03°) and for the fast group at the fast velocity (RVD—14.24 ± 0.33° vs. 13.59 ± 0.29°). Force exhibited no significant differences between testing days for any group. These results demonstrate that short-term isokinetic training results in velocity-specific RVD improvements. These acute RVD improvements may serve to offset strength deficits in power environments on the basis of the mutable relationship between force and velocity.

1Human Performance Laboratory, Arkansas State University, State University, Arkansas 72467

2Florida Atlantic University, Boca Raton, Florida 33431.

© 2003 National Strength and Conditioning Association