目的 :观察针刺对心脏植物神经的调节作用。方法 :采用心率变异性频谱分析法

对心脏植物神经做药物的逆同向干预后的针刺效应进行分析研究。结果 :植物神经被部分阻断后

针刺效应具有去药物干预样的作用。结论 :针刺疗法具有双向的良性调节作用

对心率变异性的调节必须依赖于植物神经

对心肌具有保护作用Objective: Observing the action of acupuncture on cardiac autonomic nerve activity in volunteer subjects.Methods: Twelve volunteer healthy subjects were evenly and randomly divided into Atropine group and Metoprolol group. Subjects of Atropine group were given intravenously with Atropine 1 mg

followed by puncturing bilateral Neiguan (PC 6) and Jueyinshu (BL 14) and stimulating them electrically with frequency of 0.6～0.8 Hz

15～30 V

and duration of 10 min. In Metoprolol group

6 subjects were ordered to take Metoprolol 12.5 mg orally

then EA was applied to Neiguan (PC 6) and Jueyinshu(BL 14)for 10 min. Heart rate variability (HRV) was analyzed to evaluate the effect of acupuncture on medicine induced abnormal changes of cardiac autonomic nerve activity. Results: Following injection of Atropine

low frequency (LF) component of HRV was increased slightly

while the high frequency (HF) component declined significantly (P<0.01)

and LF/HF got smaller. After EA

both LF and HF

particularly HF component increased significantly (P<0.05). Following administration of Metoprolol

LF reduced while HF increased

and LF/HF reduced considerably in comparison with pre administration of Metoprolol (P<0.01). When EA was given for 10 min

LF increased evidently (P<0.05) and HF also increased

and LF/HF got to close to normal level. The findings indicated that acupuncture could antagonize medicine induced disorder of cardiac vegetative nerve activity.Conclusion: Acupuncture possesses dual directional regulative action on cardiac sympathetic and vagal nerve activities and can protect myocardial functions effectively.