Table 1.

Criteria for recognition between hypertrophy cardiomyopathy (HCM) and the athlete’s heart. Clinical criteria for differentiating physiologic LV hypertrophy from HCM in young athletes [40].

	Elite Athlete’s Endurance	Hypertrophy Cardiomyopathy
Left ventricular thickness	Mild wall thickness	Unusual hypertrophy pattern
Left ventricular cavity size	>55 mm	<45 mm
Left atrium size	≥40 mm	<40 mm
Left ventricular filling	Normal	Abnormal
Family History of HCM	Negative	Positive