the present invention discloses locomotion simulator comprising a base having a surface movable along a base axis , a post mounted to the base a pelvic structure and a hip - thigh mechanism wherein coordinated displacement of the pelvic structure and pivoting of the thigh segment assembly simulates patterns of locomotion . the pelvic structure includes a first support movably mounted to the post , the first support allowing a displacement of the pelvic structure along a first pelvic axis generally perpendicular to the base axis and a second support movably mounted to the first support , the second support allowing a displacement of the pelvic structure along a second pelvic axis generally parallel to the base axis . as for the hip - thigh mechanism , it is mounted to the second support and includes a hip joint having a pivot axis generally perpendicular to the displacement of the second support and a thigh segment assembly pivotally so connected to the hip joint as to pivot in a plan defined by the first and second pelvic axes .