Quantitative analysis of muscular stress during ingress/egress of the vehicle

Recently elderly users have been increasing in number, and the ease of ingress/egress of the vehicle becomes an important issue. In this paper, a method of evaluating the muscular stress during ingress/egress using several MVC (maximum-voluntary-contraction) was proposed. Further MVC for elderly people was measured as well as for young people, and the increasing ratio of muscular stress for elderly people was made clear as compared with young people. Thus the necessity of an assisting tool for elderly people was confirmed quantitatively.