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June 4, 1982

Sports Medicine

JAMA. 1982;247(21):2984-2987. doi:10.1001/jama.1982.03320460084036

Exercise and the Cardiovascular System  Few subjects in medicine have been more intensely studied over the past decade than the effects of exercise on the cardiovascular system, nor has more controversy raged. Only in the past two years has the dust begun to settle as factual evidence has emerged to resolve the conflict.Cardiovascular disease remains the number one cause of death in the United States, but this figure has declined here by 30% over the past 15 years, as opposed to only a 17% decrease in other parts of the world. The specific reasons for this decline are not known, but Hartung et al1 believe that change in diet, lowering of blood cholesterol levels, early detection and treatment of hypertension, better treatment for cardiological problems, and the great enthusiasm for running and other forms of exercise may have contributed to this decline.Recognition of ECG "abnormalities" in highly