Laboratory of Acupuncture and Moxibustion, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai 201203, China.
Evid Based Complement Alternat Med. 2012;2012:179657. doi: 10.1155/2012/179657. Epub 2012 Dec 17.
A highly sensitive volt-ampere characteristics detecting system was applied to measure the volt-ampere curves of nine acupuncture points, LU9, HT7, LI4, PC6, ST36, SP6, KI3, LR3, and SP3, and corresponding nonacupuncture points bilaterally from 42 healthy volunteers. Electric currents intensity was increased from 0 μA to 20 μA and then returned to 0 μA again. The results showed that the volt-ampere curves of acupuncture points had nonlinear property and magnetic hysteresis-like feature. On all acupuncture point spots, the volt-ampere areas of the increasing phase were significantly larger than that of the decreasing phase (P < 0.01). The volt-ampere areas of ten acupuncture point spots were significantly smaller than those of the corresponding nonacupuncture point spots when intensity was increase (P < 0.05 ~ P < 0.001). And when intensity was decrease, eleven acupuncture point spots showed the same property as above (P < 0.05 ~ P < 0.001), while two acupuncture point spots showed opposite phenomenon in which the areas of two acupuncture point spots were larger than those of the corresponding nonacupuncture point spots (P < 0.05 ~ P < 0.01). These results show that the phenomenon of low skin resistance does not exist to all acupuncture points.
一个高灵敏度的伏安特性检测系统被应用于测量来自 42 位健康志愿者双侧的 9 个穴位（LU9、HT7、LI4、PC6、ST36、SP6、KI3、LR3 和 SP3）和相应非穴位的伏安曲线。电流强度从 0μA 增加到 20μA，然后再回到 0μA。结果表明，穴位的伏安曲线具有非线性和磁滞类似的特征。在所有穴位点上，增加阶段的伏安面积明显大于减小阶段的伏安面积（P < 0.01）。当电流强度增加时，10 个穴位点的伏安面积明显小于相应非穴位点的伏安面积（P < 0.05～P < 0.001）。当电流强度减小时，11 个穴位点表现出相同的特性（P < 0.05～P < 0.001），而另外 2 个穴位点则表现出相反的现象，即这 2 个穴位点的伏安面积大于相应非穴位点的伏安面积（P < 0.05～P < 0.01）。这些结果表明，低皮肤电阻的现象并不存在于所有穴位。
