基于表面肌电信号特征分析针刺对颈部肌群的效应

Study of Biological Effects of Acupuncture on Neck Muscle Group Based on Characteristics of Surface EMG Signal

目的用表面肌电信号特征分析针刺对颈部肌群的近期和远期效应。方法采用随机分组,治疗组用针刺治疗,对照组用吲哚美辛肠溶片治疗,在开始治疗和治疗后2周检测表面肌电信号。结果首次干预近期效应显示治疗组和对照组VAS均有改善,治疗组优于对照组;仅治疗组在斜方肌积分肌电值(IEMG)有改善(P<0.05),对照组无改善;干预2周后远期效应显示,治疗组各方面指数均有差异,并优于对照组,对照组仅在斜方肌IEMG、胸锁乳突肌IEMG、VAS方面有差异。结论治疗组在近期和远期效应中镇痛、肌肉功能恢复、增强抗疲劳能力方面优于对照组。

Objective To analyze the acute and chronic biological effects of acupuncture on neck muscle group by characteristics of surface EMG signal. Methods Patients were assigned randomly to two groups, the treatment group received acupuncture, and the control group were taken indometacin enteric-coat- ed tablets. Surface EMG signal were detected after the first intervention and two weeks of treatment. Results After the first intervention, the VAS score significantly decreased in the two groups, the decreasing amplitude of VAS score in treatment group was higher than that in control group, and the trapezius IEMG significantly increased in treatment group （P〈0.05）. After two weeks of treatment, all parameters in treatment group showed differences compared with those before treatment, and only a few parameters, including trapezius IEMG, sternocleidomastoideus IEMG and VAS in control group showed differences, and the change ampli- tude of parameters in treatment group was higher than that in control group. Conclusion The acute and chronic biological effects of acupuncture were superior to those of oral indomethacin, especially in pain relief, functional recovery of muscles and improvement of anti-fatigne ability.