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. 2020 Jun 16;9(11):e015117. doi: 10.1161/JAHA.119.015117

Figure 2. Bland‐Altman plots for the changes in cardiorespiratory fitness between the first and second cardiopulmonary exercise tests for each equation.

Figure 2

%Fat indicates percentage body fat; ACLS, equation based on data from the Aerobics Center Longitudinal Study; ADNFS, equation based on data from the Allied Dunbar National Fitness Survey; BMI, body mass index; CRF, cardiorespiratory fitness; eCRF, estimated CRF; NASA, equation based on data from National Aeronautics and Space Administration/Johnson Space Center; PA, physical activity; and WC, waist circumference.