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. Author manuscript; available in PMC: 2016 Nov 1.
Published in final edited form as: Drug Alcohol Depend. 2015 Sep 28;156:193–198. doi: 10.1016/j.drugalcdep.2015.09.022

Figure 6.

Figure 6

Scatter plot and Pearson product moment correlation of average daily distance run in wheel and percent change from baseline PR breakpoint during exercise sessions. A strong negative correlation between these two variables was observed (p < 0.01).