1. Graduate School of Welfare Health Science, Oita University, Japan
2. Department of Rehabilitation, Soejima Orthopedic Hospital, Japan
3. Department of Rehabilitation Medicine, Shuto General Hospital, JA Yamaguchi Prefectural Welfare Federation of Agricultural Cooperative, Japan
4. Department of Orthopedic, Soejima Orthopedic Hospital, Japan
5. Physical Therapy Course, Faculty of Welfare and Health Science, Oita University: 700 Dannoharu, Oita-shi, Oita 870-1192, Japan