THE AFFECTION OF POSTURE IN SKY TO THE JUMP REACH HEIGHT

Abstract

The purpose of this study is to understand in which degree the posture will affect the JRH (Jump Reach Height), and also to look for a posture in which he/she will get the maximum JRH. The jump performances of a male student with height 1.75m after release from the ground were simulated on computer. JRH of the hand were calculated when the subject made fourteen different postures in sky. It was shown that different posture has affection to JRH. The difference between the maximum and the minimum JRH is about 23 cm, which is about 7% of the largest JRH. In the extent of posture affection, the Lower Extremity seems to be much more important than the Upper Extremity.