article 2019 Validity of the Actiheart step test for the estimation of maximum oxygen consumption in endurance athletes and healthy controls Juliane Heydenreich, Yves Schutz, Bengt Kayser, Katarina Melzer JournalCurrent Issues in Sport ScienceDOI10.15203/CISS_2019.003Publication typeOriginal ResearchPopulationendurance athletes and healthy controls View on DOI ↗