cardiac hypertrophy

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Increase in size of the heart. In endurance athletes, it is characterized by large ventricular cavities and normal thickness of ventricular walls, enhancing stroke volume capability. It is also associated with an increased capillarization of the heart (see athlete's heart). In non-endurance athletes who regularly perform intense resistance training and isometric training, cardiac hypertrophy is characterized by normal-sized ventricular cavities and thickened ventricular walls; the stroke volume is not affected. In non-athletes, cardiac hypertrophy may be the result of a number of pathological conditions including heart valve disease.

Subjects: Sports and Exercise Medicine.

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