1. Convergence Medicine & Exercise Science Research Institute, Kosin University College of Medicine, Busan, Korea.
2. Division of Cardiology, Department of Internal Medicine, Kosin University College of Medicine, Busan, Korea.
3. Division of Sport Science, Pusan National University, Busan, Korea.
4. Department of Cardiology, Cardiovascular Center, Korea University Anam Hospital, Seoul, Korea.