Biomechanical study on the development of a system for the evaluation of sports techniques

运动技术评价系统开发的生物力学研究

• 批准号: 06680082
• 负责人: AE Michiyoshi
• 金额: $ 1.41万
• 依托单位: University of Tsukuba
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1994
• 资助国家: 日本
• 起止时间: 1994 至 1995
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-06680082/
• 关键词: BIOMECHANICS; SPORTS TECHNIQUES; DATA BASE; MOTION ANALYSIS; MODEL; THREE DIMENSIONAL MOTION ANALYSIS; DLT METHOD; スポーツ技術; 動作モデル; 3次元動作分析; 走幅跳; インステップキック

The purposes of this study were to develop a procedure to establish "Standard Motion Model" as a motion pattern model through biomechanical analysis of the skilled athletes, and to develop a prototype of the system for the evaluation of sports techniques.1. By cinematography and/or videography, data collection of skilled and excellent athletes was done during official competitions and experiments. Motions collected were sprint running, high jump, long jump, pole vault, shot put, javelin throw, and soccer kicks. Coordinates data of these motions were normalized by the duration of motion and anthropometric variables, such as body height of athletes and were averaged to produce models of standard motion.2. By examining standard deviations and coefficients of variation as an index of motion variability for some biomechanical variables, it was found that there were motions and variables with small variations and those with large variations even in the motions of the highly skilled athletes. This suggests that critical points and factors of sport techniques can be identified on the basis of motion variability, by using with theoretical approaches of biomechanics.3. The system developed consisted of a biomechanical motion data-base (BMDM), i.e.standard motions and a computerized display system on which we could compare stick pictures and/or VTR images of the athlete's motion with his/her previously recorded and/or standard motion take from BMDB.The system was not constructed on a notetype personal computer (PC), but on workstation (HP 715/50) because of the limitations of PC.However, fast development of computer-related technology will help the system more effective and promising in the near future.

本研究的目的是通过对优秀运动员的生物力学分析，建立“标准运动模型”作为运动模式模型，并开发运动技术评价系统的原型。通过电影摄影和/或录像，在正式比赛和实验期间收集熟练和优秀运动员的数据。收集的动作包括短跑、跳高、跳远、撑杆跳、铅球、标枪和足球踢球。这些运动的坐标数据通过运动持续时间和人体测量变量(如运动员的身高)来归一化，并被平均以产生标准运动模型。通过检验一些生物力学变量的标准差和变异系数作为运动变异性的指标，发现即使在高技能运动员的动作中，也存在变化较小的运动和变量，以及变化较大的运动和变量。这表明，运用生物力学的理论方法，可以在运动变异性的基础上识别出运动技术的关键点和影响因素。该系统包括一个生物力学运动数据库(BMDM)，即标准动作和一个计算机显示系统，在该系统上我们可以将运动员运动的棒状图像和/或录像带图像与他/她先前记录的和/或从BMDB上获得的标准动作进行比较。由于PC的局限性，该系统不是在笔记本电脑(PC)上构建的，而是在工作站(HP 715/50)上构建的。

项目成果

Michiyosi Ae: "A system for the identification of technical faults in sports techniques on the basis of a biomechanical motion data-base." Proceedings FISU/CESU Conference The 18th Universiade 1995 Fukuoka. 108-111 (1995)

Michiyosi Ae：“基于生物力学运动数据库的运动技术技术故障识别系统。”

MICHIYOSHI AE: "A system for the identification of technical faults in sports techniques on the basis of a biomechanical motion data-base." Proceedings FISU/CESU Confernce The 18th Universiade 1995 Fukuoka. 108-111 (1995)

MICHIYOSHI AE：“基于生物力学运动数据库的运动技术技术故障识别系统。”

Ae, M.: "A system for the ideutification of fechnicol faults in sports techniques on the basis of a biemechauical motion deta-base" Proceedings of FISUICESU Conference. 108-111 (1995)

Ae，M.：“基于 biemechauical 运动数据库的运动技术中 fechnicol 错误的识别系统”FISUICESU 会议记录。