基于表面肌电信号探讨腰椎斜扳手法治疗腰椎间盘突出症的临床疗效OA

Objective:This study used surface electromyography(sEMG)technology to evaluate the effect of the lumbar oblique pulling method on paravertebral muscle activation in patients with lumbar disc herniation(LDH).Methods:60 pa-tients with LDH were recruited as the osbervation group and 20 healthy volunteers as the control group.The osbervation group received the lumbar oblique pulling method three times a week for two weeks.The control group did not receive manual therapy.The root mean square(RMS),integrated electromyography(iEMG),average electromyography(AEMG),and median frequency(MF)of the erector spinae muscle and multifidus muscle were recorded using a surface electromyography acquisition system.The changes in sEMG parameters,VAS scores,ODI scores,SF-12 scores,and clini-cal efficacy indexes related to lumbar activity were observed before treatment,immediately after treatment,and on the 7th and 14th day of treatment.Results:The sEMG of the two groups were compared before treatment.The MF of multifi-dus muscle was not statistically significant(P＞0.05);how-ever,there were significant differences in MF,RMS,iEMG,and AEMG of erector spinae muscle,as well as RMS,iEMG,and AEMG of multifidus muscle(P＜0.05).The sEMG parameters of LDH patients were compared before and after treatment.The MF values of the erector spinae muscle and multifidus muscle showed no statistical significance(P＞0.05);the RMS,iEMG,and AEMG of erector spinae muscle were statistically significant(P＜0.05).The clinical efficacy indexes were also statistically significant(P＜0.05).Conclusion:The study shows that the lumbar oblique pulling method has a positive effect on the bioelectrical activity of paravertebral muscle,especially the erector spinae muscle,and can help regulate the activation state of paravertebral muscle in patients with LDH.