1. Department of Rehabilitation Medicine, Graduate School of Medical Sciences, Nagoya-City University: 1 Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya 467-8601, Japan
2. Department of Physical Therapy, School of Health Science, Nihon Fukushi University, Japan
3. Department of Physical Therapy, School of Allied Health Professions, Loma Linda University, USA
4. Department of Integrative Anatomy, Graduate School of Medical Sciences, Nagoya-City University, Japan
5. Department of Orthopedic Surgery, Graduate School of Medical Sciences, Nagoya-City University, Japan