Skip to main content
. Author manuscript; available in PMC: 2013 Nov 1.
Published in final edited form as: Am J Prev Med. 2012 Nov;43(5):512–519. doi: 10.1016/j.amepre.2012.06.032

Table 3.

Longitudinal algorithms for estimating maximal CRF (METs) for women

Model Women’s equations SE estimate (95% CI)
Percentage fat
 Five-level		 CRF(METs) = 13.4967 + (Age × 0.1200) − (Age2 × 0.0017) − (%fat × 0.0817) − (WC × 0.0140) − (RHR × 0.0342) + (PAI-1 × 0.2402) + (PAI-2 × 0.2735) + (PAI-3 × 0.7432) + (PAI-4 × 1.0346) − (CS × 0.3207) 1.41 (1.35, 1.47)
 Two-Level CRF(METs) = 13.7415 + (Age × 0.1223) − (Age2 × 0.0018) − (%fat × 0.0819) − (WC × 0.0141) − (RHR × 0.0349) + (Active × 0.6061) − (CS × 0.3188) 1.43 (1.37, 1.49)
BMI
 Five-level		 CRF(METs) = 14.5493 = (Age × 0.1136) − (Age2 × 0.0016) − (BMI × 0.1500) − (WC × 0.0088) − (RHR × 0.0359) + (PAI-1 × 0.2091) + (PAI-2 × 0.2275) + (PAI-3 × 0.7021) + (PAI-4 × 1.0070) − (CS × 0.3005) 1.51 (1.45, 1.58)
 Two-level CRF(METs) = 14.7873 = (Age × 0.1159) − (Age2 × 0.0017) − (BMI × 0.1534) − (WC × 0.0088) − (RHR × 0.0364) + (Active × 0.5987) − (CS × 0.2994) 1.53 (1.47, 1.59)

%fat, percentage body fat; CRF, cardiorespiratory fitness; CS, currently smoke; PAI, physical activity index; RHR, resting heart rate; WC, waist circumference