- 期刊
排球選手跳躍發球之運動學分析－以陳保宏選手爲例
Kinematic Analysis of Volleyball Players' Jump Serves: Bao-Hong Chen's as an Example
摘要
跳躍發球是現今世界排球比賽的趨勢，具有極高的得分率。本研究目的以台灣電力公司男子排球隊陳保宏選手為研究對象，配合高速攝影機的拍攝，進行運動學分析，並針對過去文獻研究的探討，給予建議以期提高運動技術的表現。本研究採用一部JVC高速攝影機(60Hz)，進行跳躍發球動作之拍攝、影片分析，所得資料經由Silicon coach動作分析系統來分析影片。其結果如下： 一、助跑期：助跑距離3.24公尺、步輻分配為第一步小於第二步小於第三步；其步幅為0.70公尺、0.80公尺、1.74公尺；助跑末速4.18公尺/秒。由結果顯示，助跑方式符合學者建議數據，在前衝方面獲益，而產生較大的助跑末速。 二、起跳期：下蹲角度122.36度；起跳角度55.95度；離地瞬間重心合速度4.48公尺/秒；起跳點至端線水平距離0.57公尺。由結果顯示，起跳角度接近學者建議理想角度50~54度，故增大向前的速度。 三、空中期：重心垂直位移0.61公尺；重心水平位移0.86公尺；擊球點高度3.08公尺；擊球瞬間肘關節角度154.77度。由結果顯示，因前衝獲益，因此受試者的重心垂直、水平位移位置，都很理想，顯示受試者在攻擊動作技術上具有相當的水準。
並列摘要
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.