Sample size
The sample size was calculated based on the MARA questionnaire scores. A sample size of 76 participants per group was required to detect an average difference between baseline and post-intervention measurements equal to or greater than 0.5 (SD 1.75) points in the total score of each of the two dimensions of the questionnaire with a two-sided significance level of 5%, a power of 80% and a correlation between the two measurements of 0.81 [