Relationships among After-school Physical Activity Participation, Self-control, Smart Phone Addiction, and Adaptation to School Life in Youth

The purpose of this study is to find out the relationships after-school physical activity participation, self-control, smart phone addiction, and adaptation to school life in youth. The subjects of this study were sampled 426 students live in C-city using a proportionate stratified sampling method. For the verification of collected data, we were performed the reliability, exploratory factor and multiple regression analysis and path analysis using SPSS ver. 21.0. The results obtained are as follows. First, there was a significant difference on the smart phone addition, self-control, and the school life adaptation depend on after-school sports participation. Second, After-school physical activity of youth participation is a negative correlation to the self-control with smart phone addiction, is a positive correlation to the school adjustment. Youth Participation in after-school physical activity appeared to have an positve effect from the sub-factors of physical activity and school adjustment of self-control, Sub-factors of the simple task of self-control, seeking adventure was found on the negative im\-pact on the self-centered, angry temperament. Self control sub-factors of physical activity is having an impact on the smart phone addiction negative, the other sub-factors showed a positive effect on. In addition, physical activity is positively affect the school adjustment and positive effect, and other sub-factors was found to impact on the negative. The negative effect from smart phone addiction has school adjustment problems such as building relationships with teachers and friends, following school rules and taking classes. Third, as a result of the path analysis, the causal relationship between school adjustment based on physical activity participation after school, after-school physical activity participation showed that the indirect effects of school adjustment direct effect on self-control, smart phone addiction, causality the total effect of the appeared to 2.360. Therefore After-school physical activity of youth participation will reduce the smart phone addiction and reinforce the self-control ability. So after-school sports participation is an important and positive factor of adaptation to school life in youth.