Research On Low Frequency Electrical Acupoint Stimulation To Improve Related Muscle Function Of Lateral Pinch After Stroke

Objective:Evaluating the functional status of related muscles of lateral pinch after stroke objectively, then making further study of low-frequency electrical acupoint stimulation for functional status of related muscles in lateral pinch after stroke, and optimizing the treatment of upper limb and hand function.Method:60 patients who met the standard criteria were randomly divided into treatment group and control group by the random number table, 30 cases in each group. The 60 patients were collected and extracted sEMG of the bilateral upper limb, then making some evaluations about the related flexor and extensor muscles function in lateral pinch; During the treatment, the treatment group used the low-frequency electrical acupoint stimulation, while the control group used the electroacupuncture. Both the two groups were treated 30 minutes once a day, for 6 days and one day rest once a week, totally 30 days. Then identifying the therapeutic effectiveness according to the sEMG (MAX and RMS), Lindmark, Barthel ADL and CSS. Then SPSS17.0 statistical software was used for data processing.Results:l.The sEMG showed the recruited motor units irregular messy and the the potential value was significantly less than the healthy side, when the stroke patients pinched with the ipsilateral hand. MAX and RMS value of the ipsilateral side of related flexor and extensor muscles were lower than the contralateral, the difference was statistically significant (p<0.01).2.The sEMG of the both groups showed the recruited motor units regular and the potential value increased after the treatment. MAX and RMS value of the adductor muscle, flex digitorum superficialis, extensor digitorum and extensor pollicis longus between the two groups after treatment have significantly increased compared with treatment before, and the difference was statistically significant (P<0.01).The treatment group was superior than the control group (P <0.05).3.The Lindmak scores, Barthel ADL (the upper limbs) index scores and CSS scores improved after the treatment between the two groups,and the dirrerence was statistically significant(P<0.01). The treatment group was superior than the control group (P<0.05).4.Total clinical curative rate of the treatment group was 86.7%, obviously higher than the control group whose rate was 66.7%. The difference was statistically significant(P<0.05).Conclusions:1.The ipsilateral side of the function status of related flexor and extensor muscles was significantly decreased. Coordination of the affected hand side in pinching motion was not good, and the operation cycle is not obvious.2.sEMG can objectively and sensitively evaluate muscle function state of related flexor and extensor muscles in lateral pinch.3.Low frequency electrical acupoint stimulation could improve muscle contraction and functional status of the related flexor and extensor muscles in lateral pinch with the stroke patients,then approaching to synthetically improve the fine motor function of upper limbs and ADL.