1. Department of Orthopaedics, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan
2. Department of Surgery, School of Medicine, National Yang-Ming University, Taipei, Taiwan
3. School of Sports Medicine, Chinese Medical University, Taiwan
4. Department of Exercise and Health Science, National Taiwan College of Physical Education, Taichung, Taiwan
5. Institute of Biomedical Engineering, National Cheng Kung University, Tainan, Taiwan