1. Winai Chatthong, M. Eng, OTR, is PhD Candidate, Faculty of Engineering, Department of Biomedical Engineering, Mahidol University, Salaya, Nakhon Pathom, Thailand.
2. Supalak Khemthong, PhD, OTR, is Assistant Professor, Faculty of Physical Therapy, Division of Occupational Therapy, Mahidol University, Salaya, Nakhon Pathom, Thailand.
3. Yodchanan Wongsawat, PhD, is Associate Professor, Faculty of Engineering, Department of Biomedical Engineering, Mahidol University, Salaya, Nakhon Pathom, Thailand; yodchanan.won@mahidol.ac.th