中国康复理论与实践
中國康複理論與實踐
중국강복이론여실천
CHINESE JOURNAL OF REHABILITATION THEORY & PRACTICE
2014年
4期
356-358
,共3页
帕金森病%表面肌电信号%前臂肌群%负重%静止性震颤
帕金森病%錶麵肌電信號%前臂肌群%負重%靜止性震顫
파금삼병%표면기전신호%전비기군%부중%정지성진전
Parkinson's disease%surface electromyogram signals%forearm muscles%loading%static tremors
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。
目的:探討負重前後帕金森病患者前臂錶麵肌電(sEMG)的變化特徵。方法26例帕金森病患者和28例正常對照參加本研究。于坐位上肢屈肘無負重或負重1.5 kg靜態負荷下採用錶麵電極引導,記錄sEMG信號,併進行線性時、頻分析。結果無負重時,帕金森病患者屈腕屈肌的中位頻率(MF)和平均功率頻率(MPF)均大于正常對照(P<0.05),兩組平均肌電值(AEMG)相比無顯著性差異(P>0.05);負重1.5 kg時,帕金森病患者AEMG顯著小于正常對照(P<0.001),兩組MF和MPF相比無顯著性差異(P>0.05)。帕金森病患者無負重時MF和MPF均顯著大于負重時(P<0.001),AEMG顯著小于負重時(P<0.001);而正常對照MF和MPF在負重前後均無顯著性差異(P>0.05),隻有無負重時AEMG顯著小于負重時(P<0.001)。結論帕金森病患者靜止性震顫在sEMG上主要錶現為頻域參數的變化,而肢體乏力主要錶現為時域參數的變化。
목적:탐토부중전후파금삼병환자전비표면기전(sEMG)적변화특정。방법26례파금삼병환자화28례정상대조삼가본연구。우좌위상지굴주무부중혹부중1.5 kg정태부하하채용표면전겁인도,기록sEMG신호,병진행선성시、빈분석。결과무부중시,파금삼병환자굴완굴기적중위빈솔(MF)화평균공솔빈솔(MPF)균대우정상대조(P<0.05),량조평균기전치(AEMG)상비무현저성차이(P>0.05);부중1.5 kg시,파금삼병환자AEMG현저소우정상대조(P<0.001),량조MF화MPF상비무현저성차이(P>0.05)。파금삼병환자무부중시MF화MPF균현저대우부중시(P<0.001),AEMG현저소우부중시(P<0.001);이정상대조MF화MPF재부중전후균무현저성차이(P>0.05),지유무부중시AEMG현저소우부중시(P<0.001)。결론파금삼병환자정지성진전재sEMG상주요표현위빈역삼수적변화,이지체핍력주요표현위시역삼수적변화。
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 elec-trodes and processed by linear time and frequency domain method. Results The values of median frequency (MF) and mean power frequen-cy (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 lower 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 dis-ease patients than in the healthy controls with load.