Ref: Clemente-Suárez, V. J., Ramos-Campo, D. J., Tornero-Aguilera, J. F., Parraca, J. A., & Batalha, N. (2021). The Effect of Periodization on Training Program Adherence. International journal of environmental research and public health, 18(24), 12973. https://doi.org/10.3390/ijerph182412973