1. Kurume University School of Medicine Graduate School, Asahi-machi, Kurume, Fukuoka, Japan
2. Department of Rehabilitation, Keishinkai Hospital, Haru-machi, Tosu, Saga, Japan
3. Department of Orthopedic Surgery, Kurume University Medical Center, Kokubu-machi, Kurume, Fukuoka, Japan
4. Department of Orthopedic Surgery, Keishinkai Hospital, Haru-machi, Tosu, Saga, Japan
5. Department of Physical Therapy, Technical School of Medical and Welfare Ryokuseikan, Nishishin-machi, Tosu, Saga, Japan
6. Department of Orthopedic Surgery, Kurume University, Asahi-machi, Kurume, Fukuoka, Japan