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. 2023 Dec 18;149(18):1405–1415. doi: 10.1161/CIRCULATIONAHA.122.063777

Figure 1.

Figure 1.

Population distribution on the basis of ejection fraction and the relationship between LVEF and RVEF. A, Doughnut chart of the population distribution on the basis of ejection fraction. A reduced EF is defined as an LVEF <50% or an RVEF <45%. B, The relationship between LVEF and RVEF in endurance athletes. The dashed vertical and horizontal lines represent the cutoffs for a reduced LVEF (50%) and RVEF (45%), respectively. The dotted vertical and horizontal lines represent the cutoffs for a borderline LVEF (55%) and RVEF (50%). EF indicates ejection fraction; LV, left ventricular; and RV, right ventricular.