英文摘要
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Nowadays the trend of the world's volleyball match are jump serve. Has a very high scoring rate. The purpose of this study to the Taiwan Power Company men's volleyball team Chen Bao-hong as the research object, with high-speed camera filming, For kinematic analysis. And for literature of the past, to give advice with a view to improve the performance of technical exercise. This study used a JVC high-speed cameras (60Hz), to jump off of shooting action, video analysis, Silicon coach information obtained through the motion analysis system to analyze the video. The results are as follows:
1. During the approach: Run-up distance is 3.24m, distribution of step-by-step convergence is less than the first step the second step is less than the third step, its stride for the 0.70m, 0.80m, 1.74m, Run-up velocity is 4.18m/s. By the results show that scholars have suggested that running a manner consistent with the data. Benefit at forward, and have a greater run-up velocity.
2. During the take-off: Squat perspective is 122.36°; Take-off angle is 55.9°; Hop off the speed of an instant center of gravity is 4.48m/s; Take-off point-to-end line of horizontal distance is 0.57m. By the results show that take-off angle near scholars have suggested that the ideal angle of 50~54°, therefore increasing the speed of forward.
3. In the air: Center of gravity vertical displacement is 0.61m; Horizontal displacement of center of gravity is 0.86m; Hit a high point is 3.08m; Instantaneous batting elbow angles is 154.77°. By the results show that due to forward to benefit, So were the focus of vertical, horizontal displacement of the location, are ideal subjects showed movement in the attack considerable technical standards.
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