Inhibitor effect of acupuncture on the vibration-induced grasp reflex in man.
The effect of acupuncture on the grasp reflex caused by mechanical vibrations of fingers produced by a cylinder-type vibrator (120 Hz) was studied in healthy man. As the hand grasped the vibrator during vibration, the volar surface of all fingers was simultaneously stimulated, resulting in a gradually increased force of the grasp, the vibration-induced grasp reflex (VGR). The VGR was inhibited by acupuncture with needles inserted into three acupuncture points (Shou Sanli, Chicheng and Szutu), but not into other sites in the hand.
D015670:Acupuncture Therapy; D005385:Fingers / Q000294:innervation; D006225:Hand / Q000294:innervation; D006801:Humans; D008465:Mechanoreceptors / Q000502:physiology*; D009048:Motor Skills / Q000502:physiology*; D009119:Muscle Contraction; D009470:Muscle Spindles / Q000502:physiology; D009433:Neural Inhibition; D014732:Vibration