Effect Of Mirror Therapy On Upper Limb Function And ? Wave Of Cortical Motor Area In Stroke Patients With Hemiplegia

Objective:To observe the effect of mirror therapy(MT)on the function of upper limbs in patients with early hemiplegia after stroke,and to explore the effect of mirror therapy on the inhibition of ? wave in motor cortex of patients with cerebral apoplexy.Methods:60 patients with hemiplegia after stroke were randomly divided into experimental group and control group,30 cases in each group.All patients were given conventional early rehabilitation intervention,and the experimental group on the basis of this supplemented by mirror therapy,once a day,each time for 20 minutes,continuous treatment for 11-12 weeks.Before and after 3 months of treatment,two groups were assessed with the action research arm test(ARAT),the Fugl-Meyer motor function scale(FMA)and the functional independence measure(FIM).Video EEG technique was used to analyze the ? wave suppression index of motor cortex in the two groups(EEG signal acquisition points were 4 regions including Cz,CPz,CP3 and C3).Results:There was no significant difference between the two groups of ARAT,FMA,FIM and ? wave suppression in Cerebral cortex(Cz/CPz/CP3/C3)in the two groups before treatment(P>0.05);After treatment,the ARAT,FMA,FIM scores of upper limb and ? wave inhibition index of motor cortex in the two groups were significantly improved(p<0.05);The scores of the experimental group ARAT(31.07 ± 7.75)points,FMA(31.27± 7.66)points,FIM(72.97± 16.38)points were significantly improved(P<0.05).The inhibitory index of the cortex ? wave at the four electrodes Cz/CPz/CP3/C3 were(-0.28±0.09)/(-0.32 ± 0.13)/(-0.28 ± 0.12)/(-0.32 ± 0.13)significantly improved compared with the control group(P<0.05).Conclusion:Early stroke rehabilitation combined with mirror image therapy can significantly improve the motor function of upper limbs in patients with hemiplegia.With video EEG technology,it is found that mirror therapy has a significant effect on the ? wave suppression of cortical motor area in stroke patients,and the mirror therapy is revealed from the electrophysiological point of view.Possible mechanism of action.