Cardiovascular changes in athletes.
Athletic training commonly increases left ventricular and diastolic volume and left ventricular wall thickness within weeks to months of the beginning of vigorous conditioning. Bradycardia is usual and a third heart sound is frequently audible. A systolic heart murmur is present in 30 to 50 percent of athletes. An increased PR interval, widening of the QRS complex and repolarization alterations are among the most common electrocardiographic abnormalities. Cardiomegaly and a globular heart are characteristically seen on chest radiographs.
Mukerji
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B
University of Missouri Health Sciences Center, Columbia.
Alpert
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MA
Mukerji
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V
D000222:Adaptation, Physiological; D003645:Death, Sudden / Q000209:etiology; D004452:Echocardiography; D004562:Electrocardiography; D015444:Exercise; D006321:Heart / Q000502:physiology* / Q000503:physiopathology; D006331:Heart Diseases / Q000175:diagnosis; D006801:Humans; D013177:Sports