C. M. de Liz, J. N. Azevedo, G. T. Vilarino, F. H. Dominski, and A. Andrade, “The motives of strength training practice differs in relation to age of the practitioner”, Cad. Educ. Fís. Esporte, vol. 13, no. 1, pp. 61–67, Apr. 2016.