A controlled prospective study of the effect of endurance training on the recurrence rate of myocardial infarction. The Ontario exercise heart collaborative trial. An interim report

The Ontario Exercise-Heart Collaborative Trial was initiated in 1972. It is a multicentre prospective study designed to determine whether participation in an exercise program, which produces a significant training effect, will affect the recurrence rate in men who have survived an initial myocardial infarction. The subjects were volunteers who entered the trial if they met the following criteria: under 54 years of age, non-diabetic, or diabetic …