1. Graduate School of Health Sciences, Kagoshima University, Kagoshima, Japan
2. Department of Rehabilitation, Japan Community Health Care Organization, Kumamoto General Hospital, Kumamoto, Japan
3. Department of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, Kagoshima, Japan
4. Department of Rehabilitation, Tarumizu Chuo Hospital, Tarumizu Municipal Medical Center, Kagoshima, Japan
5. Department of Physical Therapy, Kagoshima Medical Professional College, Kagoshima, Japan
6. Division of Rehabilitation, Kurume University Hospital, Fukuoka, Japan
7. Department of Rehabilitation, National Hospital Organization Osaka Toneyama Medical Center, Osaka, Japan
8. Department of Preventive Gerontology, Center for Gerontology and Social Science, National Center for Geriatrics and Gerontology, Aichi, Japan
9. Department of Mechanical Systems Engineering, Faculty of Engineering, Daiichi Institute of Technology, Kagoshima, Japan