Statistical analysis
Statistical analysis was performed using the SPSS statistical software system (SPSS Inc., Chicago, IL; v28.0). Descriptive analysis of the qualitative data was performed using means, medians, percentages and ranges. The Saphiro-Wilk test was used to screen all data for normality of distribution. For variables with a normal distribution, a repeated measures analysis of variance (ANOVA) with post hoc Bonferroni adjustments was conducted. The between-subjects factor was set as the group parameter and the within-subjects factors included each of the measurements and the treated side (more/less affected side). For the comparison of the mean differences in both groups, comparing pre-treatment with post-treatment measurements, post-treatment with follow-up measurements and pre-treatment with follow-up measurements; and the satisfaction level of the subjects and therapy attendance rate, a mean comparison analysis was conducted using Student's t-test. Effect size was obtained for the main variables with the Partial Eta Squared, which interpretation rules are: 0.01 = small effect size; 0.06 = medium effect size; and 0.14 or higher = large effect size. The statistical analysis was performed with a confidence level of 95%, considering values with p < 0.05 as significant.