sozu@bsys.hiroshima-u.ac.jp 3 Division of Physical Analysis and Therapeutic Sciences, Institute of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima-shi, Hiroshima 734-8553, Japan; sekikawa@hiroshima-u.ac.jp 4 Department of Physical Therapy, Faculty of ...