Effects of Different Frequency Electroacupuncture on Upperlimb Spasticity in Patients with Stroke Based on EMG and MMG Signal Evaluation
Xiang Yun
Wang Hui
Ni Junjie
Li Guanglin
Yang Wanzhang
Zhang Liangqing
Xu Na
Abstract：Objective To observe the therapeutic effects of different frequency electroacupuncture on upperlimb spasticity in patients with stroke based on EMG and MMG signal evaluation.Methods Thirty patients with upper limb spastic paralysis after stroke were randomly divided into two groups: group A (n=15) treated with low frequency electroacupuncture (2 Hz),group B (n=15) treated with high frequency electroacupuncture (100 Hz).Before and after treatment,we used surface electromyography,mechanomyography to record,the biceps and triceps methods of electricity and motor activity when elbow flexion maximum isometric contraction.Ashworth Scales,Fugl-Meyer Scales,Barthel Index number and the overall clinical perimeters were used to evaluate therapeutic effect.Results Before the treatment,there was no significant difference in IEMG between two groups (P>0.05).After the treatment,during maximum isometric voluntary contraction of elbow flexion,the IEMG of biceps was decreased,the IEMG of triceps was increased in two groups,and there was a difference between two groups (P<0.05).Compared with group A,during maximum isometric voluntary contraction of elbow flexion,the IEMG of biceps in group B was lower than that in group A,the IEMG of triceps in group B was higher than that in group A (P<0.05).Before the treatment,there was no difference in RMS between two groups (P>0.05).After the treatment,during maximum isometric voluntary contraction of elbow flexion,the RMS of biceps was decreased in two groups,and there was a difference between two groups (P<0.05).Compared with group A,the high frequency group during maximum isometric voluntary contraction of elbow flexion,the RMS of biceps was lower than that in group A (P<0.05).Before the treatment,there no significant difference in the scores of Ashworth Scales,Fugl-Meyer Scales and Barthel Index between two groups (P>0.05).After the treatment,the scores of Ashworth scales were decreased in two groups while the scores of Fugl-Meyer Scales and Barthel Index were increased in two groups (P<0.05).After the treatment,the scores of Ashworth Scales,the Fugl-Meyer Scales and Barthel Index in group B was better than that in group A (P<0.05).Conclusion Different frequency of electroacupuncture can effectively improve the degree of the upper limb spasm,motor function and the patients' daily life activities ability.The therapeutic effects of high frequency electroacupuncture is better than that of low frequency electric acupuncture.
Keywords：strokeupper limb spasticityelectroacupuncturefrequencybiological signalsAshworth ScalesFugl-Meyer ScalesBarthel Index
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 541-546 )