1. Department of Rehabilitation, Medical Corporation Sonodenkai, Hanahata Rehabilitation Hospital, Hanahata, Adachi-ku, Tokyo, Japan
2. Department of Physical Therapy, Tokyo Metropolitan University Graduate School of Health Sciences, Arakawa-ku, Tokyo, Japan
3. Department of Rehabilitation, Sendai Seiyo Gakuin College, Nagamachi Taihaku-ku, Sendai-shi, Miyagi, Japan