Figure 4.
A. Distributions of axon profile lengths measured in grafts two weeks following nerve transection and repair in castrated untrained (Cx & Untrained) mice and castrated continuous trained mice (Cx & Trained) are shown as cumulative frequency histograms. The format is the same as in Figures 2 and 3. B. Average median (±SEM) lengths of regenerating axons in untrained gonadally intact male (Intact) mice and untrained castrated (Cx) mice or castrated mice trained with a continuous treadmill training paradigm (Trained), each two weeks after nerve injury. N=4 for each category.