《中国康复理论与实践》

《中国康复理论与实践》 ›› 2014, Vol. 20 ›› Issue (4): 356-358.

• 论文 • 上一篇    下一篇

帕金森病患者前臂肌群负重前后表面肌电特征

蔡奇芳，谭炎全，刘结梅   

  1. 佛山市顺德区第一人民医院康复医学科，广东佛山市528300。
  • 收稿日期:2013-12-06 修回日期:2014-01-17 出版日期:2014-04-25 发布日期:2014-04-25
  • 通讯作者: 谭炎全

Characteristics of Surface Electromyogram of Forearm Muscles of Parkinson's Disease Patients with or without Load

CAI Qi-fang,TAN Yan-quan, LIU Jie-mei.   

  1. Department of Rehabilitation Medicine, the First People's Hospital of Shunde, Foshan 528300, Guangdong,China
  • Received:2013-12-06 Revised:2014-01-17 Published:2014-04-25 Online:2014-04-25

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摘要： 目的探讨负重前后帕金森病患者前臂表面肌电(sEMG)的变化特征。方法26 例帕金森病患者和28 例正常对照参加本研究。于坐位上肢屈肘无负重或负重1.5 kg 静态负荷下采用表面电极引导，记录sEMG信号，并进行线性时、频分析。结果无负重时，帕金森病患者屈腕屈肌的中位频率(MF)和平均功率频率(MPF)均大于正常对照(P<0.05)，两组平均肌电值(AEMG)相比无显著性差异(P>0.05)；负重1.5 kg 时，帕金森病患者AEMG显著小于正常对照(P<0.001)，两组MF和MPF相比无显著性差异(P>0.05)。帕金森病患者无负重时MF和MPF均显著大于负重时(P<0.001)，AEMG显著小于负重时(P<0.001)；而正常对照MF和MPF在负重前后均无显著性差异(P>0.05)，只有无负重时AEMG显著小于负重时(P<0.001)。结论帕金森病患者静止性震颤在sEMG上主要表现为频域参数的变化，而肢体乏力主要表现为时域参数的变化。

关键词: 帕金森病, 表面肌电信号, 前臂肌群, 负重, 静止性震颤

Abstract: Objective To explore the characteristics of surface electromyogram (sEMG) of the forearm muscles of Parkinson's disease patients with or without load. Methods 26 Parkinson's disease patients and 28 healthy individuals participated in this study. All the subjects performed isometric contraction for elbow flexion without load or with a load of 1.5 kg. The sEMG signals were collected by surface electrodes and processed by linear time and frequency domain method. Results The values of median frequency (MF) and mean power frequency (MPF) were higher in the patients than in the healthy controls without load (P<0.05). The value of average EMG (AEMG) was lower in the patients than in the healthy controls with a load of 1.5 kg (P<0.001). For the patients, the values of MF and MPF were higher without load than with a load of 1.5 kg (P<0.001), and the value of AEMG was er without load than with a load of 1.5 kg (P<0.001). For the healthy controls, only the value of AEMG was lower without load than with a load of 1.5 kg (P<0.001). Conclusion The values of MF and MPF are higher in Parkinson's disease patients than in the healthy controls without load while the value of AEMG is lower in Parkinson's disease patients than in the healthy controls with load.

Key words: Parkinson's disease, surface electromyogram signals, forearm muscles, loading, static tremors