人体疲劳的生物力学分析

Biomechanical Analysis on the Fatigue of Human Body

对疲劳前后的两组纵跳中关节功率的变化及其与人体疲劳的关系进行了定量分析。纵跳动作用摄像机记录,录像资料用一套运动影像分析系统进行分析处理。纵跳中的地面反力由测力台进行测量。对两组动作中的关节功率进行了生物力学计算和比较。结果表明,关节功率能够明确地反映人体各部分的疲劳程度,是对人体疲劳进行定量描述的重要力学量。

The change of joint power of two groups of vertical jumps before and after fatigue is studied quantitatively.The jumping movements are video recorded.The video materials are then analyzed on a motion analysis system.The ground reaction force during jumps is measured by a force platform.The joint power during the two groups of movements is calculated and compared using biomechanical method.The results shows that joint power can really reflect the level of fatigue and it is an important quantity for the quantitative description of the fatigue of human body.