Fuentes-Barría H, González-Wong C, Aguilera-Eguía R, Mera AY, Tabares-Gonzalez E, Montoya-Gonzalez S, et al. Scales of subjective perception of effort and physical activity in times of SARS-CoV2/COVID 19. Univ. Salud [Internet]. 2022 Aug. 30 [cited 2026 Apr. 15];24(3):214-7. Available from: https://revistas2.udenar.edu.co/index.php/usalud/article/view/6358