Ivy was trained and has experience in both animal and human research. His research focuses on the acute and chronic effects of exercise on muscle metabolism, with special emphasis on carbohydrate regulation. Currently, Dr. Ivy is investigating the locus and cause of muscle insulin resistance, as well as the mechanisim(s) by which muscle insulin resistance is reduced with exercise training. Dr. Ivy is also investigating the regulation of muscle glycogen synthesis, means of enhancing the rate of muscle glycogen synthesis, and the effects of various ergogenic aids on physical performance. Dr. Ivy has been a University of Texas faculty member for 18 years. He is a fellow and former Ambassador for the American College of Sports Medicine, a Fellow in the American Academy of Kinesiology, and a member of the American Physiological Society, American Diabetes Association, and American Institute of Nutrition. Dr. Ivy serves on the editorial boards of the "American Journal of Physiology,"; "International Journal of Sports Nutrition" and "Medicine and Science in Sports and Exercise," and he has published over one hundred peer-reviewed research and review articles.