1. Department of Physical and Rehabilitation Medicine, Kyung Hee University Medical Center, College of Medicine Kyung Hee University, Seoul, Korea
2. Department of Physical Therapy, The Graduate School, Yonsei University, Wonju, Korea
3. Department of Physical and Rehabilitation Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Suwon, Korea
4. Department of Physical Therapy, Kinetic Ergocise Based on Movement Analysis Laboratory, College of Health Science, Yonsei University, Wonju, Korea