Corrêa, Umberto Cesar, and Antônio Sabino da Silva Filho. “ Adolescent Choices of Walking Activities During Physical Education Classes ”. Brazilian journal of physical education and sport 22, no. 2 (June 1, 2008): 149–159. Accessed May 18, 2024. https://www.revistas.usp.br/rbefe/article/view/16690.