1. Department of Physical Education and Recreation, University of Alberta, Edmonton, Alberta, Canada;
2. Department of Kinesiology, University of Texas at Arlington, Arlington, Texas
3. Department of Integrative Pharmacology, Abbott Laboratories, Abbott Park, Illinois;
4. Departments of Anesthesiology and Physiology, Medical College of Wisconsin and Veterans Affairs Medical Center, Milwaukee, Wisconsin;
5. College of Education and Health Professions, University of Arkansas, Fayetteville, Arkansas; and