Abstract
The purpose of this study was to examine the relationship between spike speed and trunk flection power in
volleyball. The subjects of this study were nine volleyball female players. In this study, Cybex TMC was used
to examine the muscle characteristics of kinetic movement in trunk flection-extension exercise.
The results were follows; 1) There were significant correlations between spike speed and peak torque at 240
and 300deg/sec by higher speed hitter. 2) It was found out that it was related with the improvement of the
ball speed that the high power could be performed at a high-speed muscle contraction velocity. 3)The results
suggests that dynamic resistance training with speed is important more than static muscle training to increase
a spike speed.
