纵跳落地动作地面反作用力计算机仿真方法的研究  

Simulation Method Study of the Ground Reaction Force of Vertical Jump Landing

作　　者：于佳彬[1] 郝卫亚[2] 周兴龙[3] 

机构地区：[1]上海体育学院运动健身科技省部共建教育重点实验室,上海200438 [2]国家体育总局体育科学研究所,北京100061 [3]北京体育大学运动人体科学学院,北京100084

出　　处：《天津体育学院学报》2013年第6期497-501,共5页Journal of Tianjin University of Sport

基　　金：国家自然科学基金项目(项目编号:10972062)

摘　　要：研究高水平运动员落地时人体所受负荷对于评价训练效果以及预防损伤的意义。通过仿真方法可以获取无法通过测力台测试得到的地面反作用力,但数据准确性有待确认。通过对不同高度台阶纵跳动作进行仿真得到的力值曲线,与测力台测得的力值曲线进行相似度与特征时刻值的对比,验证Lifemod仿真的准确性与可靠性。结果:仿真得到的地面反作用力(GRF)曲线与测力台实测曲线之间的复相关系数(CMC)均在0.90左右,为高度相关;GRF最大值差值占测力台实测GRF最大值的1.4%,达到GRF最大值时间的差值为0.002 s。结论:仿真能得到准确的数据,Lifemod仿真能够很好地与实际情况相匹配,用它对国家高水平运动员训练或者比赛时的GRF进行推导是可行的,且相对准确的。It is significant to investigate the landing load suffered by high-level athletes for evaluating the training effect and prevention of injury. Simula- tion can get the ground reaction force （GRF） that can＇t be gotten by force platforms, but the accuracy of data needs to be confirmed. The study investigat- ed the similarity and characteristic values of landing force curves got by simulation and force platforms to verify the accuracy and reliability of Lifemod simulation. Results showed that the CMCs of GRF curves gotten by simulation and force platforms were all about 0.90 representing the high correlation. The difference value of maximum GRF was 1.4% of the maximum GRF got by force platforms, and the time difference of getting the maximum GRF was 0.002 s.Conclusion： Accurate data matching the real value could be got by simulation. It is feasible and accurate to get the GRF of national level athletes in the training and match.

关 键 词：Lifemod 准确性验证 落地冲击力 

分 类 号：G804.6[文化科学—运动人体科学]