PROBLEM TO BE SOLVED: To solve a problem that there is no body torsion correction device available which alleviates inappropriate stress on a hip joint, etc. and corrects a body torsion for sounder gait and seating, and which is so convenient and simple as to be operated by a user himself/herself when alleviating the body torsion that is said to be related to lumbago and instability of a gait and seating motion, and solve a problem that, under the present circumstances, there is no choice but to depend on direct treatment by a bone-cracker, etc.SOLUTION: After a lower extremity to be subjected to correction is determined based on the result of body torsion measurement separately performed, means is provided for imparting a movement taking into account a stretching exercise and a rotation exercise of a hip joint to a muscle on the rear surface of the lower extremity of a lying or seated user so that the tension of the lower extremity and the hip joint is alleviated.