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The evaluation of the cushioning properties in sport shoes on the basis of human's adaptation by muscle turning.

基于人体肌肉转动适应的运动鞋缓冲性能评价。

基本信息

批准号：
15500433
负责人：
MARUYAMA Takeo
金额：
$ 2.3万
依托单位：
Tokyo Institute of Technology
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2003
资助国家：
日本
起止时间：
2003 至 2005
项目状态：
已结题

项目摘要

The aim of this research was the evaluation of the cushioning properties in sport shoes on the basis of human's adaptation by muscle tuning. In this research, muscle tuning was estimated with kinematical and electromyography (EMG) analysis. Then, the relationships between muscle tuning and leg stiffness during running and jumping were examined. The influence of the shoes materials on muscle tuning and leg stiffness was considered.In the study of "Influence of shoes on motion control of lower extremity during jumping", the kinematical and kinetic parameters and EMG were analyzed on conditions of barefoot or shoed during jumping. In the result, the differences of jumping motion between barefoot and shoed conditions were observed in ankle joint stiffness and work at heel strike. The joint stiffness represented the change of motion under these conditions quantitatively.In the study of "The estimation of muscle fatigue and the effect on motion control in lower extremity during running", the … More real-time analysis system on EMG was developed, and muscle fatigue and the change of motion were examined during treadmill running with constant speed. In the result, muscle fatigue was measurable during running immediately.In the study of "Relationship between relative exercise loads and ankle joint motion during treadmill running", the characteristics of ankle joint motion were examined at various relative running speeds with the ventilation threshold (VT) and testing speed for evaluating the properties in sport shoes was considered. In the result, the speed above 35%VT was appropriate to evaluation of the properties in sports shoes.In the study of "Effects of cushioning properties in shoes materials on lower extremity joint motion and muscle activities", muscle activities, joint work and joint stiffness were analyzed during jumping on the materials varied energy absorption. In the result, there was no evidence that the cushioning properties in shoes materials influenced on muscle activities, joint work and stiffness under these experimental conditions. Less

本研究的目的是在人体肌肉调节适应性的基础上评价运动鞋的缓冲性能。在这项研究中，肌肉调谐估计与运动学和肌电图（EMG）分析。然后，肌肉调谐和腿刚度之间的关系，在运行和跳跃进行了检查。在“运动鞋对跳跃时下肢运动控制的影响”的研究中，分析了赤脚和穿鞋两种情况下的运动学参数、动力学参数和肌电信号。结果表明，赤脚和穿鞋条件下的跳跃运动在踝关节刚度和足跟着地功方面存在差异。在“跑步运动中下肢肌肉疲劳的评估及其对运动控制的影响”的研究中， ...更多信息研制了肌电实时分析系统，检测了跑台恒速跑过程中肌肉疲劳和运动变化。在“跑步机跑步时相对运动负荷与踝关节运动的关系”研究中，以通气阈值（VT）为指标，考察了不同相对跑步速度下踝关节运动的特征，并考虑了评价运动鞋性能的测试速度。在“鞋用材料缓冲性能对下肢关节运动和肌肉活动的影响”研究中，分析了不同材料在不同能量吸收情况下跳跃时的肌肉活动、关节作功和关节刚度。结果表明，在这些实验条件下，没有证据表明鞋子材料的缓冲性能会影响肌肉活动、关节功和刚度。少