摘要
目的以不同体力活动人群的姿势控制能力为出发点,根据其在静动态模式的COP时域变化和肌肉共激活指数。探究不同体力活动水平大学生姿势控制能力的差异性。方法运用国际通用体力活动问卷(IPAQ)划分高低体力活动人群。使用16通道无线遥感表面肌电采集系统(Delsys)、三维测力台(Kistler),对选取各20名受试者进行静动态姿势控制测试。结果高低体力活动人群在EC期间对优势腿的SOL/TA共激活指数有显著影响(p<0.05),在前倾测试中的非优势腿的SOL/TA共激活指数有显著变化(p<0.05)。其他指标虽有变化,但无显著性差异。结论随着体力活动的增加,COP的时域变化参数大致呈下降趋势。前倾与后倾在重心稳定维系方面,高水平活动组显示出更优的控制能力,拥有较强的肌肉协同能力。提示通过体力锻炼可以增强肌肉的协调能力,减少损伤风险。
Objective To study the time domain changes of COP in static and dynamic modes and the coactivation index of muscles during postural control by using the postural control ability of people with different physical activities as the starting point.To explore the difference of postural control ability of college students with different physical activity levels.Methods The International General Physical Activity Questionnaire(IPAQ)was used to divide high and low physical activity groups.A 16-channel wireless remote sensing surface electromyography acquisition system(Delsys)and a three-dimensional dynamometer(Kistler)were used to select 20 subjects for static and dynamic postural control tests.Results The SOL/TA co-activation index of dominant legs was significantly affected by high and low physical activity group during EC(p<0.05),and the SOL/TA co-activation index of non-dominant legs in the forward leaning test was significantly changed(p<0.05).Although other indicators have changes,but no significant difference.Conclusion With the increase of physical activity,the time domain parameters of COP generally decreased.Forward leaning and backward leaning showed better control ability and stronger muscle coordination in center of gravity stability maintenance in the group with high level of activity.It is suggested that physical exercise can enhance muscle coordination and reduce injury risk.
作者
焦培豪
高原
付宇舒
梅庆康
解海鑫
李宇航
JIAO Peihao;GAO Yuan;FU Yushu;MEI Qingkang;XIE Haixin;LI Yuhang(School of physical education,Yanshan University,Qinhuangdao Hebei,066004)
出处
《湖北体育科技》
2023年第4期363-369,共7页
Hubei Sports Science
基金
中央引导地方科技发展资金项目(216Z2001G)。
关键词
体力活动水平
姿势控制
踝关节
肌肉共激活
physical activity crowd
posture control
ankle joint
muscle co-activation
