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. 2011 Feb 8;6(2):e16643. doi: 10.1371/journal.pone.0016643

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Ke et al.

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.

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The quantity of exercise undertaken by the V-Ex rats is represented by their average daily running distance. The vertical bars in the graph represent the standard deviations (SD), while I1 to I7 represent the days of intervention after surgery. The running distance of V-Ex rats was similar as that of F-Ex rats (average 622.33 m vs 600 m) on I1, but gradually increased during the intervention period.