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. 2019 Mar 19;10:229. doi: 10.3389/fphys.2019.00229

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Copyright © 2019 Faull, Dearlove, Clarke and Cox.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Rate of perceived exertion (RPE: mean ± SEM) plotted against power during incremental exercise under ketosis or placebo control conditions. p-values represent analysis of variance (ANOVA) results for power, ketone ester intervention and an interaction effect. Statistical significance (denoted by ^∗) was taken at p < 0.05. BL = baseline.