BACKGROUND OF NON-SPECIFIC GROIN INJURY AND CONCENTRIC MAXIMUM POWER VALUES IN ADOLESCENT SOCCER PLAYERS (B. Sancho-Monllor, J. L. Arjol-Serrano, & P. Bellosta-López , Trans.). (2020). Cuestiones De Fisioterapia, 49(1), 37-47. https://cuestionesdefisioterapia.com/index.php/es/article/view/124