1. Department of Rehabilitation, Showa Inan General Hospital: 3230 Akaho, Komagane-shi, Nagano 399-4117, Japan
2. School of Rehabilitation, Osaka Kawasaki Rehabilitation University, Japan
3. Graduate School of Life Science and Systems Engineering, Kyushu Institute of Technology, Japan
4. Course of Physical Therapy, Department of Rehabilitation, Faculty of Medical Science and Welfare, Tohoku Bunka Gakuen University, Japan