... Although the prevailing opinion is that the application of periodized models is better when aiming at developing strength, power and muscular endurance with respect to non-periodized model (Fleck, 1999;Herrick& Stone, 1996;Kramer, Stone, O'bryant, Conley, Johnson, Nieman, ... & Hoke, 1997;O'bryant, Byrd, & Stone, 1988;, certain studies suggest that the benefits of periodization with the goal of developing muscular strength and hypertrophy are largely based on assumptions, and have little solid evidence that periodization is a superior exercising plan (Mattocks, Dankel, Buckner, Jessee, Counts, Mouser, ... & Loenneke, 2016). It is also concluded that when the total volume and intensity of the load are equalized, then there is no difference in the application of the non-periodized and the periodized model (Baker, Wilson, & Carlyon, 1994), i.e. that the periodized model does not always lead to significant improvements compared to the non-periodized model (Grgic, Lazinica , Mikulic, & Schoen- feld, 2018;Hoffman et al., 2009;Souza, Ugrinow- itsch, Tricoli, Roschel, Lowery, Aihara, ... & Wilson, 2014). In other words, it is not necessarily disputed that periodized models are superior (the existence of a methodological explanation to vary training vari-ent duration of experimental factors, it is assumed that with different groups of subjects the response of the organism will be different as well. ...