“…1,2 Cardiac rehabilitation is a comprehensive secondary prevention program involving exercise training as well as medical evaluation, cardiac risk factor modification, education, and counseling. 1 It been established as one of 9 performance measures for patients with ischemic heart disease by the American College of Cardiology Foundation and other preeminent medical organizations, 3 and it has growing relevance amid present-day surges of obesity, sedentariness, multimorbidity, aging, and other complexities of care for a growing spectrum of patients. 1,4 Yet, CR underutilization remains entrenched.…”