1. Faculty of Rehabilitation, School of Health Sciences, Fujita Health University, Toyoake, Japan
2. Department of Rehabilitation Medicine I, School of Medicine, Fujita Health University, Toyoake, Japan
3. Department of Rehabilitation, Fujita Health University Hospital, Toyoake, Japan
4. NTT DATA NJK Corporation, Chuo-ku, Japan
5. Imasen Engineering Corporation, Kakamigahara, Japan
6. NTT Basic Research Laboratories, NTT Corporation, Atsugi, Japan