1. Doctoral Program, Division of Health Sciences, Graduate School of Health Sciences, Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima City, Kagoshima 890-8544, Japan
2. Miyakonojo Rehabilitation Academy, 5822-9 Oiwada-cho, Miyakonojo City, Miyazaki 885-0062, Japan
3. Department of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima City, Kagoshima 890-8544, Japan