Table 3: The changes of skin microvascular perfusion (in arbitrary units) at all investigated points during twisting-rotating needling manipulation.

Before acupunctureBefore twisting-rotating manipulationAfter twisting-rotating manipulationAfter removing the needle

ST36 57.54 ± 56.50**52.87± 25.68**50.08 ± 48.86*
ST37 45.79 ± 14.47**
ST38 43.42 ± 13.25*42.44 ± 13.36*
Control point

*P < 0.01; ** .