中国康复理论与实践2017，Vol.23Issue(10)：1162-1165,4.DOI:10.3969/j.issn.1006-9771.2017.10.008
健康青年下台阶时股内侧肌、股直肌和股外侧肌间的表面肌电变化
Surface Electromyography Changes of Vastus Medialis, Rectus Femoris and Vastus Lateralis during Stair De-scent in Healthy Youth
史昊楠 1桂沛君 1徐大卫 1郭辉 2谢瑛1
作者信息
- 1. 首都医科大学附属北京友谊医院,北京市100050
- 2. 中国康复研究中心北京博爱医院PT3科,北京市100068
- 折叠
摘要
Abstract
Objective To evaluate the activities of vastus medialis, rectus femoris and vastus lateralis during stair descent in healthy youth. Methods Thirty healthy college students were recruited from the Capital Medical University 2015 admissions in 2016. The electrode was put on the dominant side of the quadriceps. Surface electromyography was used to record muscle activity during stair descent. Results During stair descent, the maximum amplitude and mean amplitude were significantly lower in rectus femoris than in vastus medialis and vas-tus lateralis (P<0.001). No significant difference was found between vastus medialis and vastus lateralis (P>0.05). Conclusion The activa-tion of both vastus medialis and vastus lateralis during stair descent is significantly higher than that of rectus femoris. The coactivation of vastus medialis and vastus lateralis is equal in healthy youth.关键词
下台阶/股四头肌/收缩强度/表面肌电图Key words
stair descent/quadriceps/contraction intensity/surface electromyography分类
医药卫生引用本文复制引用
史昊楠,桂沛君,徐大卫,郭辉,谢瑛..健康青年下台阶时股内侧肌、股直肌和股外侧肌间的表面肌电变化[J].中国康复理论与实践,2017,23(10):1162-1165,4.
