López Sánchez, Guillermo Felipe, Francisco José Borrego Balsalobre, Arturo Díaz-Suárez, and Lee Smith. “Effects of a 12-Week-Long Program of Vigorous-Intensity Physical Activity on the Body Composition of 6-and 7-Year-Old Children”. Journal of Human Sport and Exercise 13, no. 2proc (July 18, 2018): S445-S453. Accessed May 8, 2024. https://www.jhse.ua.es/article/view/2018-v13-n2-proc-12-week-long-program-vigorous-intensity-physica.