1. Department of Electrical and Mechanical Engineering, Graduate School of Engineering, Nagoya Institute of Technology, Nagoya 466-8555, Japan
2. Department of Physical Therapy, Nagoya Women’s University, Nagoya 467-8610, Japan
3. Three-Dimensional Motion Analysis Room, Aichi Prefectural Mikawa Aoitori Medical and Rehabilitation Center for Developmental Disabilities, Okazaki 444-0002, Japan
4. Department of Integrated Health Sciences, Graduate School of Medicine, Nagoya University, Nagoya 461-8673, Japan
5. Institutional Research Center, Aichi Mizuho College, Nagoya 467-0867, Japan
6. Department of Orthopedic Surgery, National Center for Geriatrics and Gerontology, Obu 474-8511, Japan