This paper presents information on the effectiveness of exercise programs for heart attack victims. Some of the observations come from unpublished results of a two year experiment of the National Exercise and Heart Disease Project. The paper first establishes that a group exercise program with trained supervision is advantageous for people with heart problems. Then, it discusses the relative advantages of different kinds of exercise stress tests and various drugs, such as glycosides and nitrates, and their effects in conjunction with an exercise program. Training session leaders are warned to make use of direct observation and ECG monitoring in addition to the original tests to see how strenuous an exercise program different individuals should undertake. Specific areas of caution are outlines. Included is a bibliography consisting largely of technical articles on exercise and the heart patient. (CD)