Sample size was calculated with appropriate software (Medcalc® v.9.2.1.0) based on a power of 0.80 and α of 0.05. Descriptive data are shown as mean±SD. A Kolmogorov-Smirnov test was performed to verify the normal distribution of variables. Comparisons between selected parameters were performed via paired t test. Pearson product moment correlation coefficients (r) were employed for detection of significant (p