. 2019 Aug 5;9:11314. doi: 10.1038/s41598-019-47918-7

Table 2.

Associations between cardiorespiratory fitness variables and brown adipose tissue (BAT) variables.

	BAT volume (ml)			BAT SUVmean			BAT SUVpeak
	β	R²	P	β	R²	P	β	R²	P
MODEL 1
Time to exhaustion (s)	−0.006	0.000	0.850	−0.001	0.006	0.444	−0.002	0.003	0.592
VO₂max (ml/min)	0.013	0.024	0.095	0.000	0.013	0.217	−0.001	0.004	0.484
VO₂max relative to LBM (ml/kg/min)	−0.247	0.002	0.667	0.017	0.008	0.352	0.043	0.002	0.598
VO₂max relative to body weight (ml/kg/min)	−1.274	0.028	0.057	−0.026	0.011	0.235	−0.100	0.009	0.289
MODEL 2
Time to exhaustion (s)	0.005	0.135	0.846	−0.001	0.144	0.101	−0.005	0.151	0.147
VO₂max (ml/min)	0.009	0.191	0.182	0.000	0.170	0.073	−0.001	0.172	0.215
VO₂max relative to LBM (ml/kg/min)	−0.641	0.189	0.224	0.006	0.147	0.719	−0.008	0.160	0.912
VO₂max relative to body weight (ml/kg/min)	−1.363	0.215	0.025	−0.029	0.157	0.160	−0.111	0.168	0.199
MODEL 3
Time to exhaustion (s)	−0.004	0.145	0.884	−0.001	0.168	0.285	−0.004	0.159	0.273
VO₂max (ml/min)	−0.003	0.212	0.753	0.000	0.171	0.343	−0.001	0.172	0.359
VO₂max relative to LBM (ml/kg/min)	−0.541	0.219	0.299	0.004	0.165	0.828	−0.014	0.166	0.851
VO₂max relative to body weight (ml/kg/min)	−1.731	0.244	0.006	−0.016	0.187	0.432	−0.079	0.180	0.379

Model 1: Unadjusted. Model 2: adjusted by date when positron emission tomography/computed tomography (PET/CT) was performed. Model 3: adjusted by date of PET/CT and sex. β = non-standardised coefficients; BM = body mass; R² = explained variance; SUV = standardised uptake value; LBM: lean body mass; VO₂max = maximum volume of oxygen consumed. n = 98 subjects.