基于LifeMoD对跳马运动员不同踏跳位置的仿真研究  

A Simulation Study of the Different Board Contact Position in Gymnastics Vaulting Based on LifeMoD

作　　者：李旭鸿 郝卫亚[2] Li Xuhong;Hao Weiya(School of Physical Education and Health,Hangzhou Normal University,Hangzhou 311121,China;China Institute of Sport Science,Beijing 100061,China)

机构地区：[1]杭州师范大学体育与健康学院,浙江杭州311121 [2]国家体育总局体育科学研究所

出　　处：《中国运动医学杂志》2018年第10期821-825,共5页Chinese Journal of Sports Medicine

基　　金：国家自然科学基金面上项目(NSFC11672080)资助

摘　　要：目的:探讨跳马运动员在不同踏跳位置的起跳效果以及下肢承载负荷的差异性。方法:在LifeMoD中建立19个环节的多体动力学模型和助跳板,并展开不同踏跳位置的仿真研究。结果:相较于前区和中区,在后区踏跳时助跳板上的标志点和人体左侧的踝关节都拥有较大的垂直回弹速度,同时后区踏跳下肢三个关节将承受较大踏板反作用力峰值和关节反作用力峰值。另外,不论踏跳点是否在中心位置,跳马运动员的起跳效果和下肢承载负荷都未发生明显变化。结论:在后区踏跳可以有效提高踏板后的垂直起跳速度,因此在满足人体肌骨系统能够承载的前提下,采取后区踏跳有助于完成更高难度的技术动作。Objective To explore the effectiveness of the take-off and load bearing of the lower extremity at different board contact positions. Methods Nineteen segments of multi-body dynamic models and springboards were developed in LifeMoD,and the simulation study of different board contact positions was conducted. Results Compared with landing at the front and middle areas during the vault board contact,the maximum vertical speed of the vault board markers and left lateral malleolus were higher when landing at the rear area and the three joints of the lower extremity undertook a greater peak board reaction force and joint reaction force. However,no significant differences were found in the take-off speed and joint load in the lower extremity whether the board contact position was at the center or not. Conclusions The take-off velocity from the springboard in the vertical direction can be promoted by punching in the rear zone of the springboard. Therefore,more difficult movement can be managed in this way if the load is bearable by the human musculoskeletal system.

关 键 词：LifeMoD 踏跳位置 起跳效果 仿真 

分 类 号：G832.2[文化科学—体育训练]