三級跳遠選手助跑速度與身體重心縱移幅度之分析

A Study on the Influence of Approaching Speed and Forwarded Gravity to the Performance in Triple Jump

游正忠(Cheng-Chung Yu)

《輔仁大學體育學刊》 6期 (2007/05) Pp. 101-112

https://doi.org/10.29697/JPE.200705.0008

摘要

Purpose: The purpose of the study is to analyze the influence of approach speed and forwarded gravity of the body to the performance of Triple Jumpers. Method: In the study, five video cameras with speed of 60 frames per second were used to film the 2003 National Athletic Meet for male and female Triple Jump final competitions. Eight jumpers of each sex were tested on 14 segments and 21 joints. After analyzing the 2D film Result and Conclusion: 1. Both male and female jumpers tend to make the shortest last step in order to step on the board accurately. For female jumpers, the last step and the last third step are related to the performance. 2. The average approach speed for male jumpers in the last 10 meters is 9.91±0.28 meter/second. For female jumpers, it is 7.83±0.16 meters/second. Only the speed between 6 and 10 meters is related to the score. 3. The approach coefficient for male and female jumpers is 1.61 and 1.57. Female jumpers have higher coefficient, but their approach speed is slower. So, they can not create better achievement. 4. For both male and female jumpers, the movement of forwarded gravity is the largest at the last jump. It is not related to the speed and score. Suggested: In order to reach the better performance, they are suggested that to reinforce approach speed of jumpers and to reduce the horizontal speed loss.

關鍵字

步幅 ； 助跑速度 ； 重心縱移

並列摘要

Purpose: The purpose of the study is to analyze the influence of approach speed and forwarded gravity of the body to the performance of Triple Jumpers. Method: In the study, five video cameras with speed of 60 frames per second were used to film the 2003 National Athletic Meet for male and female Triple Jump final competitions. Eight jumpers of each sex were tested on 14 segments and 21 joints. After analyzing the 2D film Result and Conclusion: 1. Both male and female jumpers tend to make the shortest last step in order to step on the board accurately. For female jumpers, the last step and the last third step are related to the performance. 2. The average approach speed for male jumpers in the last 10 meters is 9.91±0.28 meter/second. For female jumpers, it is 7.83±0.16 meters/second. Only the speed between 6 and 10 meters is related to the score. 3. The approach coefficient for male and female jumpers is 1.61 and 1.57. Female jumpers have higher coefficient, but their approach speed is slower. So, they can not create better achievement. 4. For both male and female jumpers, the movement of forwarded gravity is the largest at the last jump. It is not related to the speed and score. Suggested: In order to reach the better performance, they are suggested that to reinforce approach speed of jumpers and to reduce the horizontal speed loss.

並列關鍵字

stride ； approach speed ； forward gravity

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