| 女子3人双膝抛直体后空翻两周下抛起动作的动力学和运动学特征 |
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| 引用本文： | 袁尽州.女子3人双膝抛直体后空翻两周下抛起动作的动力学和运动学特征[J].体育科学,1997(5). |
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| 作者姓名： | 袁尽州 |
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| 作者单位： | 西安体育学院 西安 |
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| 摘 要： | 采用高速摄影和3维测力同步方法对技巧女子3人双膝抛直体后空翻两周下动作进行定量测试,旨在揭示该动作的动力学和运动学特征;探讨3人之间的最佳配合技术特点。结果表明:抛起阶段两底座垂直支撑反力曲线形状为双峰型,最大峰值约为两底座体重之和的两倍,底座在抛起时相身体各部位用力表现为一定的顺序性,先是以腰、髋、膝发力为主,然后是以肩、肘、腕发力。尖子蹬伸时机比底座晚。
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| 关 键 词： | 运动学 动力学 3人技巧 |
Kinematic and Kinetic Features of the Throwing Part of Double Back Layout to Stand with Knee Throwing in Triples |
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| Yuan Jinzhou.Kinematic and Kinetic Features of the Throwing Part of Double Back Layout to Stand with Knee Throwing in Triples[J].China Sport Science,1997(5). |
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| Authors: | Yuan Jinzhou |
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| Abstract: | The throwing part of double back layorut to stand with knee throwing was measured with synchronized high-speed photograph and 3-D kinetic analysis to study its kinematic and kinetic features and the most suitable coordinated skills between the three athletes. The results showed that the pattern of vertical force curve revealed two peaks, of which the maximum was about double weight of the two understanders. The different body parts of the two understanders displayed sequence in throwing phase: first the back, hip and knee stretched, and then the shoulder, elbow and wrist. The topmounter stretched later than the two understanders. |
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| Keywords: | acrobatics pyramid stunt kinematics kinetics |
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