Figure 1.

(A) Association between gray matter density and fast-paced walking speed unadjusted and (B) regions that remained significant after adjusting for demographic variables, clinical morbidities, and cognitive function—including those with smaller effect sizes, ie, <0.3 m/s. (C) Association between gray matter density and usual-paced walking speed unadjusted and (D) regions that remained significant after adjusting for demographic variables, clinical morbidities, and cognitive function—including those with smaller effect sizes, ie, <0.3 m/s. Color bar indicates value of the t-statistic testing the association between gray matter density and fast- (A and B) or usual-paced (C and D) walking speed.