Despite the established benefits of regular physical activity in cardiovascular disease prevention, coronary events in the context of atherosclerotic coronary artery disease are the most common cause of exercise-related sudden death. A paradoxical development of an increased coronary calcification burden is likely associated with endurance training even in the absence of any of the traditional cardiovascular risk factors. In this case report, we present a 50-year-old male long-distance runner with excessive subclinical myocardial ischemia.
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