Depression symptoms
We have started our analyses from the Kolmogorov–Smirnov test to verify the distributions of the variables. The analysis revealed that in case of the BDI score the distributions of the variables were close to the normal distribution in Time 1 and Time 2 in the EDU group and Time 1 in the HIIT group (The ITT analysis confirmed that the difference between the two groups was statistically non-significant in both—the Time 1 and Time 2 assessments. However, contrary to the above-described outcomes the differences between Time 1 and Time 2 were statistically significant in both – the HIIT (Of note, as sleep is one of the factors that significantly influences cortisol concentrations, we additionally decided to verify whether there were any between-group differences in sleep patterns. In order to do so, we verified the differences between the two groups in answers on item 16 in 