1. Department of Rehabilitation, Saitama Medical University International Medical Center, 1397-1 Yamane, Hidaka, Saitama, Japan
2. Department of Physical Therapy, Tokyo Metropolitan University, 7-2-10 Higashiogu, Arakawa-ku, Tokyo, Japan
3. Department of Physical Therapy, Juntendo University, 3-2-12, Hongo, Bunkyo-ku, Tokyo, Japan