Abstract
[Purpose] Human bipedal locomotion is accompanied not only by motion of the leg but by the motion of the body in which every part is adjusted skillfully. When a physiotherapist evaluates gait, a comprehensive gait analysis including motion of the leg joints, trunk and head is conducted. [Subjects] Twelve healthy adults were the subjects. [Methods] Standing, comfortable gait, step over (10 cm, R. leg only), and step over (30 cm, R. leg only) were recorded. Three local coordinates were measured and three angles, head segment angle, thoracic segment angle and pelvic segment angle were calculated. [Results] A significant difference was found between level walking and 30 cm step over in the tilt of the pelvis. [Conclusion] The results suggest that step over depends on the tilting of the pelvis and the bending of the thorax and that alternate movement of the pelvis and the thorax is a key point.