written by the American College of Sports Medicine ; presented by James O. Hill, Joseph E. Donnelly, Jessica Unick and John M. Jakicic ; produced by Healthy Learning
written by the American College of Sports Medicine ; presented by Michel Audiffren, Keita Kamijo, Kirk Erickson, Charles Hillman and Phillip Tomporowski ; produced by Healthy Learning
presented by Edward M. Phillips, Helen K. Delichatsios, Margaret Moore, Susan Parks and Elizabeth Pegg Frates ; produced by the Institute of Lifestyle Medicine, Healthy Learning and Harvard Medical School, Dept. of Physical Medicine and Rehabilitation