1. Department of Health and Social Services, Graduate School of Saitama Prefectural University, Saitama 343-8540, Japan
2. Soka Orthopedic Internal Medicine, Saitama 340-0016, Japan
3. Yatsuka Orthopedic Internal Medicine, Saitama 340-0028, Japan
4. Department of Rehabilitation, Faculty of Health Sciences, Nihon Institute of Medical Science, Saitama 350-0435, Japan
5. Faculty of Health Sciences, Hokkaido University, Sapporo 060-0812, Japan
6. Tokyo Kasei University, Sayama 350-1398, Japan
7. Saitama Prefectural University, Saitama 343-8540, Japan