Demczyszak I, Włudarczak D, Fortuna M, Zemełko J. The middle-aged women motivations taking up fitness type physical activity. J Educ Health Sport [Internet]. 2018 Nov. 24 [cited 2024 Jul. 27];8(11):382-8. Available from: https://apcz.umk.pl/JEHS/article/view/6311