Influence of Contrast and Plyometric Methods on Explosive Strength in the Pre-Competitive Stage in Youth Soccer Players. ACTIVIDAD FÍSICA Y DESARROLLO HUMANO, [S. l.], v. 9, n. 1, p. 1–9, 2018. DOI: 10.24054/afdh.v9i1.642. Disponível em: https://ojs.unipamplona.edu.co/index.php/afdh/article/view/642. Acesso em: 16 oct. 2025.