Abstract
Our recent data have confirmed that maximum oxygen delivery in racing Thoroughbreds is positively correlated to left ventricular mass measured by echocardiography. A similar, but weaker relationship also exists between left ventricular mass and Timeform performance rating in commercial racehorses. The relationship of the Thoroughbred heart to racing success and the special problems that selective breeding for aerobic capacity have had in this species are reviewed in this article.
Publication types
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Research Support, Non-U.S. Gov't
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Review
MeSH terms
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Adaptation, Physiological / physiology
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Animals
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Atrial Fibrillation / etiology
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Atrial Fibrillation / physiopathology
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Breeding / methods*
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Heart / physiology*
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Heart Valve Diseases / etiology
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Heart Valve Diseases / physiopathology
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Hemorrhage / etiology
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Hemorrhage / physiopathology
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Horses / physiology*
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Lung Diseases / etiology
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Lung Diseases / physiopathology
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Physical Conditioning, Animal / adverse effects
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Physical Conditioning, Animal / physiology*
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Running / physiology*