Abstract
To compare the immediate effect of acupuncture and moxibustion at Guanyuan (CV 4) and Zusanli (ST 36) on heart rate variability index in patients with qi deficiency syndrome. Ninety patients with qi deficiency syndrome were randomly divided into an acupuncture group, a moxibustion group and a blank group, 30 patients in each group. The patients in the acupuncture group were treated with acupuncture at Guanyuan (CV 4) and Zusanli (ST 36) for 15 min; acupuncture was given once. The patients in the moxibustion group were treated with moxibustion with identical acupoints and treatment duration. The patients in the blank group received no intervention. The symptom scores of qi deficiency syndrome in each group before and after treatment were recorded. The average heart rate and index of heart rate variability including total power, low frequency (LF), high frequency (HF) and logarithm of LF/HF (log LF/HF) were tested 5 min before treatment, 5 min, 10 min, 15 min into treatment, and 5 min after treatment. The symptom scores of qi deficiency syndrome were reduced in the acupuncture group and moxibustion group after treatment (P<0.05). Compared before treatment, in the acupuncture group, the HF was increased 5 min into treatment (P<0.05), but was reduced 15 min into treatment and 5 min after treatment (P<0.05, P<0.01). The log LF/HF was increased 5 min and 10 min into treatment and 5 min after treatment (P<0.01). The difference of average heart rate between 5 min before treatment and 5 min after treatment in the acupuncture group was higher than that in the moxibustion group and blank group (P<0.05), and the difference of log LF/HF was higher than that in the moxibustion group and blank group (P<0.05, P<0.01). Acupuncture and moxibustion has immediate effects on heart rate variability in patients with qi deficiency syndrome, and the effect of acupuncture is superior to moxibustion, which may be related to the benign regulation of acupuncture on autonomic nervous system.
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