1. Rehabilitation Center, Kawasaki Geriatric Medical Center, Kurashiki, Okayama, Japan
2. Division of Physical Therapy, School of Rehabilitation, Faculty of Health and Social Services, Kanagawa University of Human Services, Yokosuka, Kanagawa, Japan
3. Department of Rehabilitation, Suita Municipal Hospital, Suita, Osaka, Japan
4. Department of Rehabilitation, Konan Kakogawa Hospital, Kakogawa, Hyogo, Japan
5. Rehabilitation Section, Ishii-kai medical corp. Ishii hospital, Isesaki, Gunma, Japan
6. Department Physical Therapy, Japanese Red Cross Society Wakayama Medical Center of Rehabilitation, Wakayama, Japan