1. Institute of Taekwondo for Health and Culture, Dong-A University, Republic of Korea
2. Department of Health Care and Science, Dong-A University: 840 Hadan 2-Dong, Saha-Gu, Busan 604-714, Republic of Korea
3. Institute of Convergence Bio-Health, Dong-A Univesity, Republic of Korea
4. Department of Marine Leisure and Tourism, Youngsan University, Republic of Korea