The standing posture motions of trainees against wave images projected by a ship handling simulator

Abstract

A ship handling simulator is a system that simulates ship and maritime environments for navigation training on land. Many trainees feel motions of floor even though floor does not oscillate on a training. The purpose of this study is to analyze the human standing postural motions that are response to images with different wave directions. Standing posture motion was evaluated by linear and angular accelerations at the head and hip, energy expenditure, and the motion of the center of gravity (COG). Eight participants looked at four types of wave images: without waves, 180 degrees wave direction, 135 degrees wave direction, and 90 degrees wave direction. There was no significant difference on the data of linear and angular accelerations at the head and hip, and energy expenditure. The COG motions of participants were observed in response to the wave directions projected by the simulator.