Postural Movements in Standing Human Induced by Ship's Rolling and Pitching-I

Abstract

The subjects who were standing aboard rolling ship with several foot positions, such as open stance, close stance, the Mann's posture, and one foot were observed. Power spectra of the head and the body center of gravity (CG), velocity distribution of CG, sway paths of CG of the body, and phase angle between rolling of ship and the CG of the body were analysed, and the dynamic response of the body due to the ship's motion was discussed.