不同方式躯干运动时腰部肌肉表面肌电信号特征研究  

On SEMG Characteristics of Lumbar Muscles in Different Trunk Motions

作　　者：陈岚岚[1] 韩晓鸣[1] 胡飞锋[1] 张旭[1] CHEN Lanlan;HAN Xiaoming;HU Feifeng;ZHANG Xu(Qianjiang College,Hangzhou Normal University,Hangzhou 310018,China)

机构地区：[1]杭州师范大学钱江学院

出　　处：《杭州师范大学学报（自然科学版）》2019年第5期555-560,共6页Journal of Hangzhou Normal University(Natural Science Edition)

基　　金：浙江省教育厅高等学校访问学者专业发展项目(FX2017056);杭州师范大学钱江学院第三批访问学者教学改革项目(2019fwxzjg-03)

摘　　要：本文采集20名健康青年男性志愿者在躯干屈曲伸展、侧屈、旋转以及不同前倾角度运动时腰部竖脊肌与多裂肌的sEMG信号,分析其特征参数AEMG的变化特征,以探讨不同方式的躯干运动对腰部竖脊肌和多裂肌平均肌电(AEMG)的影响.结果表明:躯干伸展过程中腰部竖脊肌和多裂肌的AEMG值均大于屈曲过程(P<0.05),提示向心运动对腰部肌肉的激活程度较离心运动大;躯干由直立向一侧旋转时腰部多裂肌的激活程度存在显著的对侧增强效应;躯干前倾至45°与65°角位置时腰部竖脊肌和多裂肌其激活程度均高于其它角度.Taking 20 healthy young male volunteers as the objects,the sEMG signal of their lumbar multifidus and erector spinae during the different trunk motions like trunk forward flexion and extension,lateral bending and axial rotationwas observed,the linear parameter AEMG was analyzed,and the effects of different trunk motions on the AEMG of lumbar multifidus and erector spinae were discussed.The results suggested that the AEMG in extension was higher than flexion(P<0.05),the activationdegree of concentric exercise was strongerthan eccentric exercise.When the trunk rotated from upright to one side,the activation degree of the opposite side of the lumbar multifidus was higher than the same side,when the trunk forward to 45 degrees and 65 degrees,the activation degree of these lumbar muscleswas higher than that of other angles.

关 键 词：躯干运动 表面肌电信号 平均肌电值 多裂肌 竖脊肌 

分 类 号：G804.5[文化科学—运动人体科学]