Data analysis
For data analysis, SPSS ver. 16.0 was used for averages and standard deviations. Data normality was tested using Shapiro-Wilk test, and all variables showed normal distribution. Independent t-tests and chi-squared tests were used for homogeneity testing. A paired t-test was used for comparison of within group exercise. An independent t-test was used for comparison of exercise differences between groups. Significance level was set at 0.05 for all analyses.