Journal of Sports Sciences
This is an Accepted Manuscript of an article published by Taylor & Francis in Journal of Sports Sciences on June 21, 2020, available online: https://www.tandfonline.com/doi/full/10.1080/02640414.2020.1763764
Kaster, Tori; Dooley, Faith L.; Fitzgerald, John S.; Walch, Tanis J.; Annandale, Madison; Ferrar, Katia; Lang, Justin J.; Smith, Jordan J.; and Tomkinson, Grant R., "Temporal trends in the sit-ups performance of 9,939,289 children" (2020). Education, Health & Behavior Studies Faculty Publications. 57.