MORTON GLANZ, M.D.
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To the editor: In their recent paper "Comparative Left Ventricular Dimensions in Trained Athletes" (Ann Intern Med 82:521-524), Morganroth and associates arbitrarily classify athletic endeavors into isotonic (running, swimming) and isometric (wrestling, shot-putting) varieties and base their conclusions on the presumptive hemodynamic stresses of the two types of activity. However, speaking from the personal experience of one who has competed extensively in both distance running and wrestling, I wonder about the validity of the authors' classification. The training workouts of the varsity wrestler focus on prolonged, repetitive experience with the physical discomfort associated with "oxygen debt." Indeed this conditioning procedure
GLANZ M. The Heart in Athletes. Ann Intern Med. ;83:574–575. doi: 10.7326/0003-4819-83-4-574
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Published: Ann Intern Med. 1975;83(4):574-575.
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