单侧痛腰椎间盘突出症的表面肌电信号特征  

Comparison of surface electromyography features between healthy controls and lumbar disc herniation patients with unilateral pain

作　　者：陈文敏 肖玲玲[1] 李慧慧[2] 张广宇 CHEN Wenmin XIAO Lingling LI huihui ZHANG Guangyu(Jiangxi University of Science and Technology, Ganzhou 341000, China Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China)

机构地区：[1]江西理工大学,江西赣州341000 [2]中国科学院深圳先进技术研究院,广东深圳518055

出　　处：《中国医学物理学杂志》2017年第10期1022-1026,共5页Chinese Journal of Medical Physics

基　　金：国家自然科学基金(61401454);国家863计划(2015AA-043203);广东省科技计划项目(2014B010111008)

摘　　要：目的:探索单侧痛腰椎间盘突出症(LDH)患者和健康者的表面肌电图的特征差异。方法:从多裂肌、腹外斜肌和腹横肌收集表面肌电信号的数据,22例右侧痛LDH患者,12例左侧痛LDH患者和22例健康者,受试者在专业人员指导下进行站立,然后尽可能地弯曲,保持完全弯曲再笔直站立,执行5次。使用归一化肌电均方根值(RMS),平均功率频率(MPF)作为分析基础。结果:单侧疼痛LDH组与健康者在多块肌肉的各项变量均有显著性差异,此外LDH组的平均RMS和MPF值均低于健康组。结论:腰椎肌肉的表面肌电信号的RMS和MPF可以作为LDH患者风险的预测因子。同时结合常用的视觉模拟量表进行临床疼痛研究,通过客观测量值来探讨患者的主观反应,随着单侧痛LDH患者主观疼痛值增大,肌电信号的特征值减小,这将有益于患者的康复。Objective To quantitatively compare the differences in surface electromyography（s EMG） features between the healthy and lumbar disc herniation（LDH） patients with unilateral pain. Methods The s EMG data were collected from the miltifidus muscles, external oblique muscles and transverse abdominal muscles. Twenty-two LDH patients with right-sided pain, 12 LDH patients with left-sided pain and 22 healthy controls participated in this experiment. Subjects firstly stood under the guidance of a professional, and then bend as far as possible, and keep fully flexed and stand again, performing 5 times. The normalized EMG root mean square（RMS） and mean power frequency（MPF） were used as the base for analysis. Results Significant differences between the unilateral pain LDH group and the healthy group were found. Furthermore, the mean RMS and MPF of LDH group were lower than those of the healthy group. Conclusion The RMS and MPF of the s EMG signal of lumbar muscle can be used as predictors of the risk of LDH patients. The most frequently used visual analog scale was used for analyzing the pain in clinical research, and objective measurements are used to explore the patient＇s subjective response. With the increase of subjective pain score of LDH patients with unilateral pain, the eigenvalue of s EMG signal decreases, which might benefit to patients in rehabilitation.

关 键 词：表面肌电信号 腰椎间盘突出症 均方根值 平均功率频率 

分 类 号：R681.57[医药卫生—骨科学] R337.5[医药卫生—外科学]