首页> 外文会议>International Symposium on Biomechanics in Sports vol.1; 20050822-27; Beijing(CN) >BIOMECHANICAL STUDY ON THE MUSCLES' SPECIFIC ABILITIES OF TAKEOFF IN LONG JUMP
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BIOMECHANICAL STUDY ON THE MUSCLES' SPECIFIC ABILITIES OF TAKEOFF IN LONG JUMP

机译:跳远运动员肌肉专项能力的生物力学研究

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摘要

Through using the method of biomechanical theory and experimental research, the paper studied the specific ability characteristics of takeoff leg muscles in long jump. Seven male long jumpers were required to complete running long jump. Kinematics and dynamics data were from biomechanical investigation. The 'Inverse Dynamics' method was used to calculate the muscles moment of hip, knee and ankle of the takeoff leg. The result showed that the ability of quick eccentric contraction of hip was important in takeoff. The knee was shown the characteristics of 'fore-support push' in take off. The ability of concentric contraction of knee's extensors played a very important part in getting vertical velocity, the larger peak of knee flexion moment emerged in earlier takeoff phase that indicated the knee flexion muscles actively contracted in this period.
机译:通过运用生物力学理论方法和实验研究方法,研究了跳远起跳腿肌肉的比能力特征。需要七名男子跳远运动员才能完成跳远比赛。运动学和动力学数据来自生物力学研究。 “逆动力学”方法用于计算起飞腿的臀部,膝盖和脚踝的肌肉力矩。结果表明,髋关节快速偏心收缩的能力对起飞很重要。膝盖显示出起飞时“前推”的特征。膝关节伸肌同心收缩的能力在获得垂直速度方面起着非常重要的作用,在早期起飞阶段出现了较大的膝关节屈曲力矩峰值,这表明膝关节屈曲肌肉在此期间积极收缩。

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