Carvalho, Luiz Antônio Penteado de, and André Luiz Felix Rodacki. “ The Influence of Two Backpack Loads on children’s Spinal Kinematics ”. Brazilian journal of physical education and sport 22, no. 1 (March 1, 2008): 45–52. Accessed May 18, 2024. https://revistas.usp.br/rbefe/article/view/16681.