Evaluation of Standing-Sitting Support System with Passive Rotational Seat Mechanism in Standing Motion

Abstract

Since a decrease in muscle mass of elderly people, the physical burden of them in standing-sitting motion of a seat are increasing than young people. For this problem, several standing-sitting support systems have been developed, and evaluations of these systems focusing on a reduction of physical load have been discussed. However, these evaluations are of support systems with an active actuators or of support systems when they use a handrail and a standing aid. Thus, an evaluation of a support system with only passive actuators has not been reported. In this paper, in standing motion with using a standing-sitting support system with passive rotational seat mechanism which our group proposes, we objectively evaluate an effectiveness of the passive rotational seat mechanism by statistical analysis. K E Y W O R D Sjoint torque, passive rotational seat mechanism, standing-sitting support system, trunk forward motion 16