1. Doctor’s Program, Graduate School of Health Sciences, Gunma University, Maebashi 371-0044, Japan
2. Department of Occupational Therapy, Faculty of Rehabilitation, Gunma Paz University, Takasaki 370-0006, Japan
3. Graduate School of Health Sciences, Gunma University, Maebashi 371-0044, Japan
4. Department of Rehabilitation, Gunma University Hospital, Maebashi 371-8511, Japan
5. College of Biomedical Science and Engineering, Inje University, Gimhae-si 50834, Republic of Korea
6. Institute of Aged Life Redesign, Inje University, Gimhae-si 50834, Republic of Korea