슈팅방향에 따른 핸드볼 점프슛의 동작 분석

초록

The present study used a video analysis system to quantify the kinematical data of jump shoot motion by male university handball players. From the results of analyzing dynamic variables of jump shoot motion according to shooting direction were drawn conclusions as follows.1. Time taken in the jumping interval and the early flight interval was slightly long when the shooting direction was right, and time taken in the latter flight interval was slightly long when the shooting direction was left.2. The distance of shift of the center in the flight interval was generally proportional to the players’ height, and the distance in the early flight interval appeared long in rightside attacks.3. Release height appeared high when the shooting direction was left, and the distance of hop step was quite long in rightside attacks.4. Difference in the shoulder angle at the moment of release among players probably resulted from difference in the flexibility of the shoulder joint or the angle appropriate for applying strength to the ball according to physique.5. The leftward inclination angle of the body at the moment of release was slightly larger in rightside attacks and the frontward inclination angle was slightly larger in leftside attacks. This is understood to maintain the ideal shooting pose according to shooting direction. 6. The contribution of body parts on the ball speed was higher in order of forearm > shoulder joint > upper arm > hand. Thus the contribution of the forearm was highest. 7. In players whose distance between the two legs at the moment of release, their body usually did not incline to the side much. Thus it is considered necessary to correct the right leg in their shooting motion.