Abstract
The purpose of the study was to compare the kinematic differences between the elite senior high school athletes and normal students in long-jump. Twenty-four subjects including elite athletes and normal students were voluntarily participated in this study. Two high speed cameras (120 Hz) were used to capture the movements of all participants during the event. Kinematic parameters were derived from Kwon 3D software. Differences of parameters between the two groups were analyzed by using t-test. The results showed that the distance and ratio of each step, the extension of lower extremities at landing phase and the peak angle of hip joint at air phase were significantly different between elite athletes and normal students. For elite group the distance of each jumping increased along with the increased steps. In contrast to this, the distance of each jumping was not change among the three steps for normal group. It was concluded that the strategy of standing triple long-jump was significantly different between elite athletes and normal students.