Fig. 4.

Regression analyses between % change [(Post − Pre)/Pre] × 100 in % fat mass and mean running traits on days 5 and 6 of a 6-day test. Running distance (revolutions/day), duration (i.e., cumulative 1-min intervals in which at least 1 revolution was recorded), and average speed (total revolutions/time spent running) for the entire population (black), the leanest 25% (green), and the fattest 25% (pink) are shown. In A–C the sexes are pooled in each of the 3 groups, while in D–F the regression results are sex specific (dashed line denotes females, solid line denotes males). Conditional slopes and r² were controlled for sex, parent of origin, and food consumption. Individuals with a positive % change in % mass increased adiposity as a result of 6 days of wheel access. Running wheel circumference was 1.1 m.