[Effects of acupuncture manipulations for acupoints impedance under the skin-clinical report of 60 healthy volunteers].

Objective: To explore the effects of acupuncture manipulations for acupoints by their impedance under the skin.

Methods: The retaining,reinforcing and reducing of acupuncture were implemented on 60 healthy volunteers, and the needles were retained for 20 min. Data analysis system for the electrical characteristics of single point was used, with insulation coating needles as the probes. The effects of acupuncture manipulations before, in the middle of and after intervention were observed through the real time dynamic detection for Zusanli (ST 36).

Results: ①The impedance during the reducing process was apparently higher than that during the reinforcing (<0.05), and the reinforcing was obviously higher than that of retaining (<0.05), namely R > R > R. ②After intervention,the three manipulations can decrease the impedance of acupoints than before (all <0.01). The retaining method reduced about 11.44 kΩ; reinforcing, 11.15 kΩ; reducing,11.12 kΩ.

Conclusions: Acupuncture manipulations can variously and apparently change the impedance of acupoints.