Aixa-Requena, Saül, Enric Conesa-Milian, Vicenç Hernández-González, Teresa Fonseca, and Joaquín Reverter-Masia. 2026. “Relationship Between Age and Cardiorespiratory Fitness in Active Youth: Evidence from the COR-School Project”. Motricidade 22 (September):e45330. https://doi.org/10.6063/motricidade.45330.