American Heart Association Exercise, Cardiac Rehabilitation, and Prevention Committee, the Council on Clinical Cardiology ; American Heart Association Council on Cardiovascular Nursing ; American Heart Association Council on Epidemiology and Prevention ; American Heart Association Council on Nutrition, Physical Activity, and Metabolism ; American Association of Cardiovascular and Pulmonary Rehabilitation. Core components of cardiac rehabilitation/secondary prevention programs : 2007 update : a scientific statement from the American Heart Association Exercise, Cardiac Rehabilitation, and Prevention Committee ... and the American Association of Cardiovascular and Pulmonary Rehabilitation