ASSESSMENT OF THE DYNAMICS OF THE LEVEL OF SPEED-STRENGTH QUALITIES OF FOOTBALL PLAYERS IN SPORTS IMPROVEMENT GROUPS OF DIFFERENT AGES. Proximus Journal of Sports Science and Physical Education, [S. l.], v. 2, n. 03, p. 57–66, 2025. Disponível em: https://proximusjournal.com/index.php/PJSSPE/article/view/222. Acesso em: 30 jan. 2026.