Analysis of the period of admission to gyms according to sex and age group. Research, Society and Development, [S. l.], v. 14, n. 4, p. e1314448437, 2025. DOI: 10.33448/rsd-v14i4.48437. Disponível em: https://rsdjournal.org/rsd/article/view/48437. Acesso em: 5 dec. 2025.