article 2026 Do Training Load Metrics Agree? A Comparison of Session Rate of Perceived Exertion, Physiological and Biomechanical Load in Outdoor Running Bouke L. Scheltinga, Jaap H. Buurke, Joost N. Kok, Jasper Reenalda JournalSports Medicine - OpenDOI10.1186/s40798-025-00969-9Publication typeOriginal ResearchPopulationrunners View on DOI ↗