1. Department of Physical Therapy, Japanese School of Technology for Social Medicine: 2-22-32 Naka-cho, Koganei, Tokyo 184-8508, Japan
2. Graduate School of Human Health Sciences, Tokyo Metropolitan University, Japan
3. Department of Rehabilitation, Niiza Hospital, Japan
4. Department of Rehabilitation, Higashiyamato Hospital, Japan
5. Department of Rehabilitation, Tokorozawa Central Hospital, Japan