de Oliveira, Gustavo, Diego Augusto Santos Silva, Rosana Mengue Maggi, Edio Luiz Petroski, and Joni Marcio de Farias. “Sociodemographic Factors and Physical Fitness Associated With Low Levels of Physical Activity in Adolescents in Southern Brazil”. Journal of Physical Education (Maringá) 23, no. 4 (January 30, 2013): 635-645. Accessed December 19, 2025. https://periodicos.uem.br/ojs/index.php/RevEducFis/article/view/17510.