1. Rehabilitation UnitKyoto University Hospital, 54, Shogoin‐Kawahara‐cho, Sakyo‐ku Kyoto606‐8507 Japan
2. Human Health SciencesGraduate School of Medicine, Kyoto UniversityKyoto Japan
3. Institute for Human Movement and Medical SciencesNiigata University of Health and WelfareNiigata Japan
4. Rehabilitation GroupDepartment of Medical Technique, Nagoya University HospitalNagoya Japan
5. Department of RehabilitationSapporo Tokushukai HospitalHokkaido Japan