“Optimizing Pre-Match Preparation: Impact of Four Warm-up Protocols on Yo-Yo IR2 and Sprint Performance in Youth Footballers”. Journal of Physical Education and Sport 25, no. 7 (July 31, 2025): 1403–1411. Accessed November 6, 2026. https://www.efsupit.ro/index.php/jpes/article/view/298.