1. Division of Humanities and Social Science, POSTECH, Pohang 790-784, Korea.
2. Department of Physiology, College of Medicine, Cardiovascular and Metabolic Disease Center, Inje University, Busan 614-735, Korea.
3. Department of Physical Education, Tongmyong University, Busan 608-711, Korea.
4. Department of Physical Education, Pukyong University, Busan 608-737, Korea.
5. Division of Sport Science, Pusan National University, Busan 609-735, Korea.
6. Department of Nutrition, Food and Exercise Sciences, Florida State University, Tallahassee FL 32306, USA.