Statistical analyses
Data are shown as mean and standard deviation (SD), unless otherwise stated. A Shapiro-Wilk test was performed to verify the normal distribution of the variables, where normality was assumed if p > 0.05. Associations between CAT volume and levels of PA and PFit were examined by Pearson’s and Spearman correlation analyses, depending on normal or non-normal distribution. Non-parametric Mann-Whitney U test and related samples Wilcoxon signed-rank test were utilized to analyze between groups and within group effects of the pilot intervention, respectively. The strength of the associations (rs) and effect sizes (r) were classified as ≤ 0.1 (very small/very weak), 0.1- 0.29 (small/weak), 0.3- 0.49 (moderate), 0.5- 0.69 (high/strong), 0.7- 0.89 (very high/very strong), and 0.9- 1 (perfect). The level of significance was set at 