TABLE 2.

Mean (SD) differences in cardiorespiratory fitness quantified using different methods for children with and without obesity.

	Without Obesity	With Obesity	P
Absolute $\stackrel{.}{\text{V}}{\text{O}}_{\mathrm{2max}}$ (L·min−1)	1.52 (0.34)	1.68 (0.42)	0.13
Relative to body weight $\stackrel{.}{\text{V}}{\text{O}}_{\mathrm{2max}}$ (mL·kg−1 BM·min−1)	39.8 (7.3)	26.5 (3.2)	<0.001
Relative to LBM $\stackrel{.}{\text{V}}{\text{O}}_{\mathrm{2max}}$ (mL·kg−1 LBM·min−1)	53.4 (7.4)	48.2 (5.9)	0.009
Percent of predicted $\stackrel{.}{\text{V}}{\text{O}}_{\mathrm{2max}}$ based on
LBM (Cooper et al. 2016)	104 (13)	90 (11)	<0.001
Age (Armstrong et al. 1994)	92 (14)	102 (21)	0.046
Measured BM (Cooper et al. 1984)	98 (12)	61 (11)	<0.001
Ideal BM at 50th CDC BMI percentile (Cooper et al. 1984)	103 (12)	102 (17)	0.88
Ideal BM at 85th CDC BMI percentile (Cooper et al. 1984)	98 (12)	86 (15)	0.003
Measured BM (Cooper et al. 2016)	96 (13)	59 (8)	<0.001
Ideal BM at 50th CDC BMI percentile (Cooper et al. 2016)	101 (12)	101 (15)	0.84
Ideal BM at 85th CDC BMI percentile	96 (13)	84 (13)	0.001