3种等长负荷运动中腰部脊竖肌sEMG信号变化特征的比较研究

Comparative Study on Characteristic Change in Back Erector Spine sEMG Signals During Three Isometric Contraction

通过BS试验(Biering sorensentesting)、IS试验(Ito Shiradotesting)及直立位持重试验中sEMG信号变化特征的比较,探讨将IS试验移植到评价腰部脊竖肌活动状态和功能状态的sEMG信号特征分析中的可行性。结果表明,IS试验中腰部脊竖肌sEMG信号MF和MPF变化的规律与BS试验中相似,所有的受试均呈线性下降。提示将IS试验移植到腰背部sEMG信号特征分析中具有可行性。

By analyzing the characteristic changes of sEMG signals of BStest,IStest and STtest,this paper investigates the feasibility of introducing the IStest to evaluate the activity and function of low back erectors.The result shows that the regularity of changes in MF and MPF of low back erectors in IStest is similar to that in BStest.It decreases linearly in all subjects.It suggests that it is possible to analyze low back sEMG signal parameters using IStest.