《中国康复理论与实践》

《中国康复理论与实践》 ›› 2007, Vol. 13 ›› Issue (12): 1147-1149.

• 临床研究 • 上一篇    下一篇

脑卒中患者坐位及站立位胫骨前肌和腓肠肌表面肌电图信号特征研究

李卓; 谢斌; 罗春; 王荣丽; 王宁华   

  1. 北京大学第一医院物理医学与康复科,北京市 100034
  • 收稿日期:2007-03-26 出版日期:2007-12-01 发布日期:2007-12-01

Features of Surface Electromyographic Signal of Tibial Anterior Muscle and Gastrocnemius Muscle in the Stroke Patients when Sitting and Standing

LI Zhuo, XIE Bin, LUO Chun, et al   

  1. The Department of Physical Medicine and Rehabilitation, the First Hospital of Peking University, Beijing　100034, China
  • Received:2007-03-26 Published:2007-12-01 Online:2007-12-01

PDF (PC)

被引次数

81

摘要： 目的分析脑卒中患者坐位及站立位胫骨前肌和腓肠肌表面肌电图(sEMG)信号特征。方法选取15例脑卒中患者和15例正常人作为实验组和对照组,令受试者连续做5次由坐到站,采用表面电极引导和记录两侧胫骨前肌和腓肠肌肌电信号并进行线性时、频分析。结果脑卒中患者坐位患侧与健侧、健侧与正常人对应健侧胫骨前肌的平均功率频率(MPF)和中位频率(MF)差异有显著性意义(P<0.05);脑卒中患者健侧与正常人对应健侧腓肠肌均方根差异有显著性意义(P<0.05);脑卒中患者站立位患侧与健侧、健侧与正常人对应健侧胫骨前肌均方根和积分肌电(iEMG)差异有非常显著性意义(P<0.01);脑卒中患者健侧与患侧、患侧与正常人对应患侧腓肠肌均方根和iEMG差异有显著性意义(P<0.05或P<0.01)。结论sEMG是一种简单、实用、可行的康复评定方法。

关键词: 脑卒中, 胫骨前肌, 腓肠肌, 表面肌电图

Abstract: Objective To analyze the features of surface electromyography (sEMG) signal of the tibial anterior muscle and gastrocnemius muscle in the stroke patients when sitting and standing.Methods Fifteen stroke patients and fifteen normal subjects were involved in this study. All subjects were asked to stand up and sit down. It repeated five times continuously. The electromyographic signals were collected by surface electrode and then processed by linear time and frequency domain method.Results In sitting position, tibial anterior muscle had significant differences in mean power frequency and median frequency ( P<0.05) when the paretic and non-paretic lower limb, the non-paretic lower limb in stroke patients and in normal subjects were compared. The gastrocnemius muscle had notable differences ( P<0.05) in root mean square when the non-paretic lower limb in stroke patients and in normal subjects were compared. In standing position, tibial anterior muscle also had significant differences in root mean square and integrated electromyography ( P<0.05) as the same frequency domain comparing as above. The gastrocnemius muscle had notable differences on time domain, when the paretic and non-paretic lower limb, the paretic lower limb in stroke patients and the limb in normal subjects were compared ( P<0.05 or P<0.01).Conclusion sEMG is a brief, applied, feasible assessment method in rehabilitation.

Key words: stroke, tibial anterior muscle, gastrocnemius muscle, surface electromyography (sEMG)