2.1. Sample Size
Sample size and power calculations were performed with G* Power3, based on a previous study. Thus, a priori repeated measure ANOVA suggested that a total sample size of 44 was needed to reach 0.80% power to detect the interaction effect size of 0.20 at the 0.05 level of significance. Considering possible sample loss, 50 individuals were evaluated and allocated into the two groups in the proportion of 1:1.