Physical exercise has become universally accepted as an important component in the primary prevention of coronary disease and in the management of subjects with established coronary artery disease. Exercise should be utilized appropriately for each individual's needs and done in concert with aggressive modification of other risk factors such as abnormal blood lipids, high blood pressure, obesity and cigarette smoking. Such as approach in the preventive management of coronary artery disease is rewarded by beneficial clinical outcomes and savings in health dollars.