Data Analysis
Descriptive statistics were employed to describe participants’ characteristics. Independent t-test, chi-square test, and Mann-Whitney test were used to examine differences between groups at baseline. The repeated measures analysis of variance (ANOVA) was employed to examine the differences in four PA components and PF (sit-ups, sit-and-reach, and run components), between the experimental and the control groups, during different time points and over time. Moreover, the repeated measures analysis of covariance (ANCOVA) was employed to examine the differences in PSE, PA and push-ups, between the experimental and the control groups, during the different time points and over time.