Abstract
Responsive electric current at 14 meridian of Qi-gongist and Qi-receiver was measured simultaneously and continually at Qi-gong operation by a single square voltage pulse technique. Some eminent synchronous phenomena were observed in AP and BP of both Qi-gongist and Qi-receiver. On Qi-gong operation, meridian related to blood circulation system, which is thought to be the pathway of Qi-flow was found to be sympathetic nerve excited, whereas meridian related to digestion system were parasympathetic nerve dominant. Striking difference between internal and external Qi-gong operation is that BP tend to increase at internal operation while decrease on external operation at all the meridian system of Qi-gongist.