Statistical analysis
Before final analysis, data were assessed for the assumptions of normality and homogeneity of variance, and revealed no violations for any of the dependent variables, as assessed by Shapiro-Wilk test and Levine's test, respectively. Consequently, for all groups, descriptive statistics were estimated at two-time intervals: baseline and following four weeks of intervention. The Paired t-test was used to analyse within-group differences, and the analysis of variance (ANOVA) was used to differentiate between groups with regard to the selected parameters pre- and post-intervention. To estimate the average impact of the intervention, Cohen's d was used to assess effect sizes 