1. Department of Physical Therapy, School of Nursing and Rehabilitation, Showa University: 1865 Tokaichiba-cho, Yokohama, Kanagawa 226-8555, Japan
2. Research Institute for Sport and Exercise Sciences, Showa University, Japan
3. Department of Rehabilitation, Fujigaoka Rehabilitation Hospital, Showa University, Japan
4. Department of Orthopedic Surgery, Fujigaoka Hospital, Showa University, Japan