2.7. Statistical Analysis
All statistical analyses were conducted by SPSS software (version 25.0, SPSS Inc.). Categorical variables were analyzed by the chi-square test, while continuous variables were expressed as mean ± SD; one-way ANOVA was used to compare the means among four groups, followed by Bonferroni correction for post hoc comparisons if equal variances were assumed; otherwise, the Games–Howell test was applied. Comparisons between week 0 and weeks 4 or 8 within each group were performed using a paired Student’s 