中国康复
中國康複
중국강복
CHINESE JOURNAL OF REHABILITATION
2014年
3期
183-185
,共3页
帕金森病%上肢%表面肌电信号%负重
帕金森病%上肢%錶麵肌電信號%負重
파금삼병%상지%표면기전신호%부중
Parkinson's disease%the upper limb%surface electromyogram signals%load
目的：观察帕金森病（PD ）患者上肢无负重和负重情况下上肢肌群表面肌电信号变化特征。方法：26例帕金森病患者为PD组，28例正常人作对照组，在坐位上肢屈肘无负重和负重1．5kg的静态运动负荷下，采用表面肌电对肱二头肌及屈腕肌群进行线性时、频分析。结果：PD组中位频率（MF）和平均功率频率（MPF）均值高于对照组（P＜0．01），而平均肌电值（AEMG）值显著低于对照组（P＜0．01）。PD组的肱二头肌MF值、MPF值均小于屈腕肌群（P＜0．05，0．01）；PD组无负重的MF和MPF均值均大于负重时（P＜0．05，0．01），而无负重时的AEMG小于负重时（P＜0．01）；无负重时肱二头肌的MF均值、MPF均值均小于屈腕肌群（P＜0．05，0．01）。结论：帕金森病患者上肢肌群运动单位募集过度，肌力下降，其中以前臂肌群或上肢无负重时最明显，表面肌电信号可以反映帕金森病患者的肌肉功能。
目的：觀察帕金森病（PD ）患者上肢無負重和負重情況下上肢肌群錶麵肌電信號變化特徵。方法：26例帕金森病患者為PD組，28例正常人作對照組，在坐位上肢屈肘無負重和負重1．5kg的靜態運動負荷下，採用錶麵肌電對肱二頭肌及屈腕肌群進行線性時、頻分析。結果：PD組中位頻率（MF）和平均功率頻率（MPF）均值高于對照組（P＜0．01），而平均肌電值（AEMG）值顯著低于對照組（P＜0．01）。PD組的肱二頭肌MF值、MPF值均小于屈腕肌群（P＜0．05，0．01）；PD組無負重的MF和MPF均值均大于負重時（P＜0．05，0．01），而無負重時的AEMG小于負重時（P＜0．01）；無負重時肱二頭肌的MF均值、MPF均值均小于屈腕肌群（P＜0．05，0．01）。結論：帕金森病患者上肢肌群運動單位募集過度，肌力下降，其中以前臂肌群或上肢無負重時最明顯，錶麵肌電信號可以反映帕金森病患者的肌肉功能。
목적：관찰파금삼병（PD ）환자상지무부중화부중정황하상지기군표면기전신호변화특정。방법：26례파금삼병환자위PD조，28례정상인작대조조，재좌위상지굴주무부중화부중1．5kg적정태운동부하하，채용표면기전대굉이두기급굴완기군진행선성시、빈분석。결과：PD조중위빈솔（MF）화평균공솔빈솔（MPF）균치고우대조조（P＜0．01），이평균기전치（AEMG）치현저저우대조조（P＜0．01）。PD조적굉이두기MF치、MPF치균소우굴완기군（P＜0．05，0．01）；PD조무부중적MF화MPF균치균대우부중시（P＜0．05，0．01），이무부중시적AEMG소우부중시（P＜0．01）；무부중시굉이두기적MF균치、MPF균치균소우굴완기군（P＜0．05，0．01）。결론：파금삼병환자상지기군운동단위모집과도，기력하강，기중이전비기군혹상지무부중시최명현，표면기전신호가이반영파금삼병환자적기육공능。
Objective :To observe changes and characteristics of the surface electromyogram (sEMG) signals of the upper limb muscles in Parkinson's disease (PD) patients without or with load .Methods:Twenty-six PD patients (PD group) and 28 healthy individuals (control group) were enrolled in this study .All the subjects were subjected to isometric contraction for elbow flexion with no load or 1 .5 kg load .The surface myoelectric signals of biceps brachii and wrist flexion muscles were collected and processed by linear time- and frequency-domain method .Re-sults :The median frequency (MF) and mean power frequency (MPF) in PD group were higher than in control group (P< 0 .01) .The value of average electromyography (AEMG) in PD group was obviously lower than in control group (P<0 .01) .The values of MF and MPF of biceps brachii in the PD group were lower than those of wrist flex-ion muscles (P<0 .05 ,or P<0 .01) .The MF and MPF in PD group with no load were higher than those in PD group with load (P<0 .05 ,or P<0 .01) ,and the value of AEMG in the presence of load was lower than that in the absence of load (P<0 .01) .In the absence of load ,MF and MPF of biceps brachii were lower than those of wrist flexion muscles (P<0 .05 ,or P<0 .01) .Conclusions:The motor units of the upper limb muscles in PD patients are over-collected and the strength is reduced ,especially in the forearm muscles or upper limb muscles in the absence of load .The sEMG signals can reflect the function of the muscles of patients with PD .
