Physical activity is an important contributor to regulation of energy balance and body composition. In this article, we separate the impact of exercise from the confounding influence of energy imbalance and highlight sex differences in hormonal and appetite responses to physical activity. The evolving story may influence our thinking regarding the use of physical activity to manage body composition.
1Department of Kinesiology, University of Massachusetts Amherst, Amherst, MA; and 2Kinesiology Department, California Polytechnic State University, San Luis Obispo, CA, United States
Address for correspondence: Barry Braun, Ph.D., FACSM, Department of Kinesiology, University of Massachusetts Amherst, 107 Totman Building, 30 Eastman Lane, Amherst, MA 01003 (E-mail: firstname.lastname@example.org).
Accepted for publication: August 31, 2009.
Associate Editor: Benjamin F. Miller, Ph.D., FACSM