Sasaki, Jeffer Eidi, et al. “Feasibility of Using a Continuous Direct Observation Technique for Assessment of Free-Living Physical Activity in Young Adults”. Arquivos De Ciências Do Esporte, vol. 4, nº 1, janeiro de 2017, https://seer.uftm.edu.br/revistaeletronica/index.php/aces/article/view/1186.