设为首页
加入收藏
联系我们
Email-Alert
 

    首页 | 杂志介绍 | 编委成员 | 审稿专家名录 | 投稿指南 | 订阅指南 | 过刊浏览 | 广告投放 | 论著模板 | 综述模板 | 帮助

 
张珊珊,吴 文,许 轶,唐 雁,王楚怀.不同性别健康人群腰部深层多裂肌肌电差异的研究*[J].中国康复医学杂志,2018,(4):413~418
不同性别健康人群腰部深层多裂肌肌电差异的研究*    点此下载全文
张珊珊  吴 文  许 轶  唐 雁  王楚怀
中山大学附属第一医院康复医学科,广州,510080
基金项目:国家自然科学基金(81473769);广东省卫生厅项目(WSTJJ20130701)
DOI:
摘要点击次数: 62
全文下载次数: 45
摘要:
      摘要 目的:采用表面肌电(sEMG)分析系统结合丝电极探讨健康人群腰部深层多裂肌活动的EMG信号特征,分析不同性别健康人群多裂肌功能状态差异。 方法:31例健康受试者(15男,16女)采用针头导入0.16mm钢丝电极线至L4水平深层多裂肌后完成改良BST动作,采集多裂肌最大随意收缩时的EMG信号,比较不同性别健康受试者平均肌电值(AEMG)、均方根值(RMS)、中位频率(MF)、平均功率频率(MPF)和非线性指标LZ复杂度的差异性。 结果:不同性别健康人群腰部深层多裂肌电信号时域指标差异有显著性意义,男性多裂肌AEMG、RMS明显大于女性(P<0.05);两组间频域指标MF、MPF、MFs、MPFs差异无显著性意义(P>0.05)。男性和女性中,双侧多裂肌电活动无显著性差异(P>0.05)。 结论:采用sEMG系统结合丝电极能够可靠、灵敏地检测出腰部深层多裂肌的肌电活动,这是一种针对性地评估深层肌肉功能活动的有效方法,具有较好的临床应用价值;同时不同性别健康人群深层多裂肌EMG的差异性为设置多裂肌正常肌电值提供了一定参考价值。
关键词:表面肌电系统  多裂肌  丝电极  差异性评定
Sex differences in electromyography activity of deep multifidus for healthy people    Download Fulltext
Department of Rehabilitation Medicine, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou,510800
Fund Project:
Abstract:
      Abstract Objective: To explore the sex differences of electromyography(EMG) activity of deep multifidus (DM) for healthy people at the level of fourth lumbar vertebrae(L4) using surface electromyography system and wire electrode. Method: To study the DM, fine wire(0.16mm) electrodes were fabricated from pairs of nylon coated 12 cm wires which were inserted into a hypodermic needle(25 gauge, 60mm long). Thirty-one healthy subjects(male,15, female,16) were enrolled to collect EMG signals of maximum isometric voluntary contraction of DM. The data were analyzed with independent samples t-test to compare the gender differences in EMG activity of the lumbar multifidus. Result: There was significant difference between male and female in average EMG(AEMG), root mean square (RMS)(P<0.05), whereas no significant difference in median frequency(MF), mean power frequency(MPF) and nonlinear index Lempel-Ziv complexity(P>0.05). No significant differences of EMG signals were found in bilateral DM for both male and female(P>0.05). Conclusion: The findings revealed that the function of the EMG in DM can be assessed by surface electromyography system and wire electrode, which provided an objective assessment tool to evaluate deep muscle function.
Keywords:surface electromyography  deep multifidus  wire electrode  assessment
查看全文  查看/发表评论  下载PDF阅读器

您是本站第 14565024 位访问者

版权所有:中国康复医学会
主管单位:国家卫生和计划生育委员会 主办单位:中国康复医学会
地址:北京市朝阳区樱花园东街,中日友好医院内   邮政编码:100029   电话:010-64218095   

本系统由北京勤云科技发展有限公司设计 京ICP备10000329号