Varela, M. T., C. Duarte, I. C. Salazar, L. F. Lema, and J. A. Tamayo. “Physical Activity and Sedentary Behavior in College Youth from Colombian Cities: Practices, Motivations, and Resources”. 2011. Colombia Medica, vol. 42, no. 3, July 2024, pp. 269-77, doi:10.25100/cm.v42i3.872.