1. Department of Rehabilitation, Kitasato University East Hospital, Japan
2. School of Allied Health Sciences, Kitasato University: 1-15-1 Kitasato, Minami-Ku, Sagamihara, Kanagawa 252-0373, Japan
3. Graduate School of Medical Sciences, Kitasato University, Japan
4. Department of Rehabilitation, Ushioda General Hospital, Japan