Abstract
This paper presents a gait trainer by using the properties of stretch reflex of the muscles recruited in gait motion. The trainer we have developed in this study is composed of a tread mill and McKibben artificial muscles. In order to investigate the muscular activation due to the contraction of McKibbens, we measure the surface electromyogram (SEMG) of biceps and triceps, and try to statistically identify the change in SEMG corresponding to the stretch reflex of the muscles.