YAÑEZ SEPULVEDA, Rodrigo Alejandro et al. Extracción fraccional de O2 y condición física entre niños activos e inactivos físicamente durante la recuperación post ejercicio (Fractional O2 extraction and fitness among physically active and inactive children during post-exercise recovery). Retos, [S. l.], v. 58, p. 633–642, 2024. DOI: 10.47197/retos.v58.105984. Disponível em: http://207.180.252.49/index.php/retos/article/view/105984. Acesso em: 12 jan. 2026.