摘要
目的:通过人体实验,对半刚性踝护具内翻防护效果进行研究,对该护具的内翻防护性能进行评价。方法:对14名男性志愿者进行平面与斜面着陆测试。平面着陆实验在不同高度(40 cm、50 cm、60 cm)及不同状态(裸足、弹性护具、半刚性护具)下进行,斜面着陆实验设置高度为40 cm,比较不同状态(裸足、弹性护具、半刚性护具)下的各项数据。利用Vicon三维动态捕捉系统收集运动学和地面反力数据。结果:平面着陆实验中,弹性护具组的最大内翻角度和最大外翻力矩最小(P<0.05)。斜面着陆中,半刚性护具组的最大外翻力矩最大(P<0.05),且最大内翻角度显著小于裸足(P<0.05)。两种着陆中最大内翻角速度均没有显著差异(P>0.05)。相较于平面着陆,斜面着陆下最大内翻角度、最大内翻角速度和最大外翻力矩均较大。结论:斜面着陆中,半刚性护具的最大内翻角度显著减小,表明其内翻防护性能较好;最大内翻角速度和最大外翻力矩能否作为护具内翻防护效果的评价参数有待进一步探讨。
Objective:The protective effect of semi-rigid ankle protector on varuswas studied and the protection performance of the semi-rigid ankle protector was evaluated by human tests.Methods:Fourteen male volunteers were tested for plane and inclined landing.The plane landing experiment was carried out at different heights(40 cm,50 cm,60 cm)and different states(bare feet,elastic protectors and semi-rigid protectors).The slant landing experiments were set at 40 cm.The data of different states(bare feet,elastic protective equipment and semi-rigid protective equipment)were compared.Vicon 3D motion capture is used to collect kinematics and ground reaction data.Results:In the plane landing experiment,the maximum varus angle and the maximum eversion moment of the elastic protector group were the smallest(P<0.05).In oblique landing,the maximum eversion moment of semi-rigid armor group was the largest(P<0.05),and the maximum varus angle was significantly smaller than that of bare foot(P<0.05).There was no significant difference in the maximum varus angle velocity between the two landing modes(P>0.05).Compared with the plane landing,the maximum varus angle,the maximum varus angle velocity and the maximum eversion moment of the inclined landing are larger.Conclusion:In the slope landing,the maximum varus angle of the semi-rigid protective device is significantly reduced,which indicates that the semi-rigid protective device has better protection performance.Whether the maximum varus angular velocity and the maximum eversion moment can be used as the evaluation parameters of the effect of the protective device need to be further discussed.
作者
李宇豪
牛文鑫
王璐
关国平
LI Yuhao;NIU Wenxin;WANG Lu;GUAN Guoping(Key Laboratory of Textile Fabric Technology Ministry of Education,College of Textiles,Donghua University,Shanghai 201620,China;Shanghai Yangzhi Rehabilitation Hospital(Shanghai Sunshine Rehabilitation Center),Tongji University,Shanghai 201619, China)
出处
《河北体育学院学报》
2020年第5期71-77,共7页
Journal of Hebei Sport University
基金
教育部与国家外专局纺织生物医用材料科学与技术创新引智基地项目“半刚性非对称结构踝护具的踝关节内翻防护效果研究”(B07024)。
关键词
非对称
踝护具
踝关节内翻
内翻角
内翻角速度
外翻力矩
防护效果
asymmetric
ankle protector
ankle varus
varus angle
varus angular velocity
eversion moment
protective effect
