Fig. 6.

Mice were placed in electromechanical switch wheel cages with and without enrichment in the form of a chew stick (n = 6). No significant differences were observed for average run time (h/day; A), average speed (km/h; B), or average distance (km/day; C). D: summary data showing the daily average distance with and without enrichment is shown. A two-tailed t-test was performed to compare the effect of access to enrichment in the form of a chew stick on run time, average speed, and average distance. A two-way ANOVA was used to compare the average daily distance with and without enrichment.