Carl J Lavie1, Ulrik Wisløff2, Roger S Blumenthal3. 1. Department of Cardiovascular Diseases, John Ochsner Heart and Vascular Institute, Ochsner Clinical School, University of Queensland School of Medicine, New Orleans, Louisiana. 2. Cardiac Exercise Research Group, Department of Circulation and Medical Imaging, Faculty of Medicine and Health Science, Norwegian University of Science and Technology, Trondheim, Norway. 3. John Hopkins Ciccarone Center for the Prevention of Cardiovascular Disease, Baltimore, Maryland.