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. Author manuscript; available in PMC: 2013 Aug 1.
Published in final edited form as: Behav Brain Res. 2012 May 17;233(2):314–321. doi: 10.1016/j.bbr.2012.05.017

Figure 5.

Figure 5

Male Fischer 344 rats remained sedentary (Sed) or were allowed voluntary access to running wheels for 6 weeks. Following 6 weeks of the sedentary or exercise conditions, wheels in the cages of the exercised rats either remained unlocked and mobile (Run 0), or were rendered immobile with a metal stake. Rats were then exposed to no stress (No Stress) or uncontrollable stress (Stress) the next day, or 4, 14, or 24 days later. Behavioral testing occurred 24 h later, so that exercised rats were forced to remain sedentary for either 0 days (Run 0), 5 days (Run 5), 15 days (Run 15), or 25 days (Run 25) prior to behavioral testing. A. Number of spontaneous cage crossings performed by experimental rats during the 3 minute juvenile exploration test. * p < 0.05 relative to respective No Stress groups. B. Time spent exploring (seconds) in a juvenile social exploration test. Values represent group means ± SEM. θ p < 0.05 relative to all other groups except Run 25 No Stress and Run 25 Stress groups. * p < 0.05 relative to all other groups except Sed Stress group.