AUTHOR=Baumgart Julia K. , Skovereng Knut , Sandbakk Øyvind TITLE=Corrigendum: Comparison of Peak Oxygen Uptake and Test-Retest Reliability of Physiological Parameters between Closed-End and Incremental Upper-Body Poling Tests JOURNAL=Frontiers in Physiology VOLUME=9 YEAR=2018 URL=https://www.frontiersin.org/journals/physiology/articles/10.3389/fphys.2018.00895 DOI=10.3389/fphys.2018.00895 ISSN=1664-042X