Abstract
This study focused on the effects of laser acupuncture (LA) and manual acupuncture (MA) at different acupoints on gastric motility and heart rate variability (HRV) simultaneously to elucidate the site specific effects of acupoints and the correlation between changes of gastric motility and low frequency/high frequency (LF/HF) ratio. Gastric motility and HRV were recorded before and during MA or LA. Stimulating PC-6 or ST-36 significantly enhanced gastric motility, while BL-21 caused no changes. In contrast, MA or LA at CV-12 significantly suppressed gastric motility. Stimulating PC-6 or ST-36 significantly increased heart rate (HR), while CV-12 or BL-21 induced no significant changes of HR. Stimulating PC-6 significantly increased LF/HF, while ST-36, CV-12, or BL-21 induced no significant effects. These results indicated that there was acupoint specificity in the effects of acupuncture on gastric motility and HRV. The stimulatory effect of MA and LA at PC-6 and ST-36 on HR was associated with sympathetic activity. The stimulatory effect of MA or LA at PC-6 or ST-36 on gastric motility was associated with vagal activity. Laser needle can be used as an alternative stimulation therapy.
Highlights
Acupuncture has been used for regulating autonomic dysfunction in gastrointestinal and cardiovascular diseases
This study focused on the effects of laser acupuncture (LA) and manual acupuncture (MA) at different acupoints on gastric motility and heart rate variability (HRV) simultaneously to elucidate the site specific effects of acupoints and the correlation between changes of gastric motility and low frequency/high frequency (LF/HF) ratio
The stimulatory effect of MA or LA at PC-6 or ST-36 on gastric motility was associated with vagal activity
Summary
Acupuncture has been used for regulating autonomic dysfunction in gastrointestinal and cardiovascular diseases. Manual acupuncture (MA) is a traditional method used widely in the world. With the development of technology, different kinds of acupuncture methods have been used in clinic. Heart rate variability (HRV) has been used to evaluate the balance between the parasympathetic and sympathetic activity. Different frequencies of violet LA on HRV were investigated. The effect of MA or LA at different acupoints such as PC-6 (Neiguan), ST-36 (Zusanli), CV-12 (Zhongwan), and BL-21 (Weishu), Evidence-Based Complementary and Alternative Medicine respectively, on HRV and gastric motility was investigated simultaneously in rats, to determine the specificity of acupoints related to the internal organs and if the effects were affected by the stimulating methods
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