F. . Gonzalez, N. . Hun, S. Aiste, C. . Aguilera, M. Cardenas, and M. Salazar, “Nivel de actividad física en preescolares y escolares chilenos durante la pandemia de covid-19 (Level of physical activity in chilean preschool and school children during the covid-19 pandemic)”, Retos, vol. 54, pp. 320–327, May 2024, doi: 10.47197/retos.v54.102268.