1. Department of Bio-Mechatronic Engineering, College of Biotechnology & Bioengineering, Sungkyunkwan University, Suwon, South Korea
2. Department of Biomedical Engineering, Catholic Kwandong University, Gangneung, South Korea
3. College of Information & Communication Engineering, Sungkyunkwan University, Suwon, South Korea
4. Department of Sports Medicine, College of Physical Education, Kyung Hee University, Youngin, South Korea