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首页> 外文会议>International Symposium on Biomechanics in Sports vol.2; 20050822-27; Beijing(CN) >BIOMECHANICS ANALYSIS OF WATER POLO THROWING
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BIOMECHANICS ANALYSIS OF WATER POLO THROWING

机译：水球投掷的生物力学分析

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摘要

The purpose of this study is to investigate the parameters of displacement, velocity, and acceleration of water polo over arm throwing. Six water polo athletes participated in this study. Kwon 3D was utilized to analyze arm movement of water polo shooting, including the displacement, velocity, and acceleration of wrist, elbow, shoulder, and ball. The results indicated, first, the displacement of arm movement was quadratic polynomial at a frequency of 0.6 second with maximum distance of 130.97 cm for ball, 117.17 cm for wrist, 107.04 cm for elbow, and 94.22 cm for shoulder. Second, the velocity of arm movement was a cubic curve with maximum speed of 25.368 m/s for ball, 20.092 m/s for wrist, 19.732 m/s for elbow, and 23.846 m/s for shoulder. Moreover, the change of maximum velocity of ball and wrist occurred after 1.5 seconds, while the velocity of elbow and shoulder both decreased for 0.5 seconds. Third, the acceleration of arm movement showed a 6th order polynomial at a frequency of 0.2 second with maximum acceleration of 505.082 m/s~2 for ball, 545.526 m/s~2 for wrist, 401.82 m/s~2 for elbow, and 568.26 m/s~2 for shoulder.
机译：这项研究的目的是研究手臂投掷时水球的位移，速度和加速度的参数。六名水球运动员参加了这项研究。 Kwon 3D用于分析水球射击的手臂运动，包括手腕，肘，肩膀和球的位移，速度和加速度。结果表明，首先，手臂运动的位移是二次多项式，频率为0.6秒，最大距离为球130.97厘米，腕部117.17厘米，肘部107.04厘米，肩部94.22厘米。其次，手臂的运动速度为三次曲线，最大速度为：球25.368 m / s，腕部20.092 m / s，肘部19.732 m / s，肩部23.846 m / s。此外，在1.5秒后，球和腕部的最大速度发生了变化，而肘部和肩膀的速度都下降了0.5秒。第三，手臂运动的加速度以0.2秒的频率显示一个六阶多项式，其中球的最大加速度为505.082 m / s〜2，手腕的最大加速度为545.526 m / s〜2，肘部的最大加速度为401.82 m / s〜2，并且肩部568.26 m / s〜2

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