Statistical methods
Normality of each variable was tested by Kolmogorov-Smirnov. Pre- and
post-treatment values were compared within groups using paired ttest. Between-group comparisons were made using independent samplet test. Effects of potential confounding factors were adjusted by
the analysis of covariance. All ANCOVA models were adjusted for the
baseline values of each variable and mean changes of BMI, WHR, physical
activity, and energy intake. P<0.05 was considered as
statistically significant. SPSS version 22 (SPSS, Inc., Chicago, IL,
USA) was used for analysis.