article 2022 Daytime fluctuations of endurance performance in young soccer players: a randomized cross-over trial Janis Fiedler, Stefan Altmann, Hamdi Chtourou, Florian A. Engel, Rainer Neumann, Alexander Woll JournalBMC Research NotesDOI10.1186/s13104-022-06247-1Study typerandomized cross-over trialPopulationyoung soccer players View on DOI ↗