AUTHOR=Lipková Lucie , Struhár Ivan , Krajňák Jakub , Puda Dominik , Kumstát Michal TITLE=Field-based tests for determining critical speed among runners and its practical application: a systematic review JOURNAL=Frontiers in Sports and Active Living VOLUME=7 YEAR=2025 URL=https://www.frontiersin.org/journals/sports-and-active-living/articles/10.3389/fspor.2025.1520914 DOI=10.3389/fspor.2025.1520914 ISSN=2624-9367