Morera-Barrantes, Roy, et al. “Physical Demands of Costa Rican Professional Soccer Players: Influence of the Playing Position and the Competitive Level”. MHSalud: Revista En Ciencias Del Movimiento Humano Y Salud, vol. 18, no. 2, June 2021, pp. 1-15, https://doi.org/10.15359/mhs.18-2.1.