Table 2.

Size of significant clusters (p<0.05, uncorrected) from whole-brain analysis evaluating the interaction between Age Group and peak VO₂ on cortical thickness controlling for sex and education, as well as partial correlations illustrating the strength of the association between peak VO₂ and cortical thickness (controlling for age, in addition to sex, and education) within each age group.

	Hemi.	Cluster Size (mm2)	Peak VO2 Partial Correlation (pr)
			YA	OA
Supramarginal/Inf. Parietal	LH	4215	−0.49**	0.45*
Lateral Orbitofrontal	RH	1256	−0.44*	0.54**
Paracentral/Post. Cingulate	LH	1235	−0.51**	0.42*
Precentral	LH	794	−0.45*	0.55**
Superior Frontal	LH	687	−0.38*	0.35
Cingulate	RH	505	0.25	−0.36
Parahippocampal	LH	481	−0.41*	0.43*
Supramarginal	RH	387	−0.51**	0.37
Precuneus	RH	361	−0.40*	0.38
Middle Temporal	RH	356	−0.11	0.51**
Parstriangularis	LH	286	−0.28	0.41*
Precuneus	LH	277	−0.26	0.46*

^*p < 0.05,

^**p < 0.01