针刺颅骨矢状缝区对健康人脊髓反射的影响

Effects of Acupuncture in Margo Sagittalis on Spinal Reflex of Healthy Subjects

对２０例健康人进行头皮针针刺矢状缝试验，并与针刺非颅骨缝区作对照，观察电刺激诱发腓肠肌的Ｈ反射及趾短伸肌的Ｆ反射，分别测量Ｍ波、Ｈ波及Ｆ波潜伏期。结果显示，针刺前后诱发两肌的Ｍ波潜伏期不变；针刺后Ｈ波及Ｆ波的潜伏期均缩短（均为Ｐ＜０．０１）。针刺非颅骨缝区诱发两肌的Ｍ波、Ｈ波、Ｆ波潜伏期均无改变。两组针刺后Ｈ波、Ｆ波潜伏期缩短率对比有显著性差异（Ｐ＜０．０１）。

Twenty healthy subjects were treated with scalp acupuncture on margo sagittalis, with non-suture area as control. The H reflex of M. gastrocnemius and the F reflex of M. extensor digitorum brevis were induced by electric stimulation, and the latent phases of M wave , H wave and F wave were determined respectively. The results showed that during acupuncture on margo sagittalis, the latent phase of M wave did not change and that of H and F wave reduced significantly (P<0.01), and there was no changes in the latent phases of these waves in the control group. But significant difference was found in the reduction of latent phases of H and F wave between two groups (P<0.01). The results suggest that acupuncture on margo sagittalis has special effects on improving the excitability of spinal premotor neuron.