Effects of a training program improve fitness in children soccer players. Impetus, [S. l.], v. 10, n. 1, p. 13–22, 2021. DOI: 10.22579/20114680.406. Disponível em: https://ojsunillanos.dev5.metabiblioteca.com.co/index.php/impetus/article/view/406. Acesso em: 7 mar. 2026.