Abstract
By added vibration stimuli on the neck while standing, it is said that the sensory shift from cervical proprioceptive organ causes disorder of head position, changes the viewer-centered reference frame and induces posture change. The purpose of this study was to examine whether the shift of center of gravity occurs by the residual effect after intervention of neck vibration stimuli on healthy people through subjects' intro spection self reports, a three dimensional motor analysis set and a force plate. The subjects were given vibration stimuli on the rear neck in the sitting position to induce kinesthetic illusion of neck flexion, and the displacement of center of gravity was recorded duting standing movement. The forward shift of center of gravity occurred in the standing movement, and the forward shift existed for up to 6 minutes. We conclude that the continuing sensory shift induced by vibration stimuli from cervical proprioceptive organ influenced the center of gravity after the standing movement.
