Biomechanical measurement and analysis of human two-step test

Two-Step Test is now widely used to evaluate the locomotion ability of human in Japanese biomechanical clinical hospitals. It is a test in which Two-Step Value is calculated by dividing a subject´s height by the maximum distance of his/her two steps of walking. The test was developed by Hirano and Muranaga in 2003 to conveniently predict human´s walking ability and is shown to have high relations with the other existing human locomotion evaluation approaches. However, this test has not been studied so far from the viewpoint of biomechanics. This study examined and analyzed the Two-Step Test using motion capture and musculoskeletal model. Based on the analysis results, we clarified many differences between subjects with different two step values.