1. Department of Healthcare Engineering, Chonbuk National University, Jeonju, Jeonbuk, South Korea
2. EasyMove Co., Ltd., 230 Anyang-ro, Anyang-si, Gyeonggi-do, South Korea
3. Division of Biomedical Engineering, Chonbuk National University, Jeonju, Jeonbuk, South Korea
4. Department of Convergence Technology Engineering, Chonbuk National University, Jeonju, Jeonbuk, South Korea
5. R&D Division, CAMTIC Advanced Mechatronics Technology Institute for Commercialization, Jeonju, Jeonbuk, South Korea
6. Research Center for the Healthcare and Welfare Instrument of the Aged, Chonbuk National University, Jeonju, Jeonbuk, South Korea