Effects Of Screen Time And Physical Activity On Pupils' Self-esteem

At present,the change of life style has a lot of impact on people.The party and government attach great importance to it.The Internet highly integrates people's life,brings comfort and convenience,but also makes people's movement state stagnate,more static life evolution,its low physical activity and high screen time has become the normal of people's life.The group of children and adolescents has become the focus of academic attention,and the majority of scholars think that the trend of their physical and mental development is worrying.In particular,the increasingly severe screen behaviors and physical activities of students,to a certain extent,lead to the imbalance of body shape and self-esteem.From the perspective of the research trend of children's and adolescents'physical and mental health,screen time,physical activity and self-esteem variables have become the focus of research.In this study,screen time,physical activity and self-esteem variables as the starting point,the introduction of body shape mediators,in order to explore the intermediary role of body shape in screen time,physical activity on self-esteem mechanism.By using the methods of literature,questionnaire,test and mathematical statistics,1500 primary school students in Hubei Province were investigated and tested(1)The overall mean value of primary school students is in the range of national BMI standard(18.5-23.9),and screen time and physical activity are in line with the recommended standard of healthy China action(2019-2030).There are significant differences in gender in physical activity,body shape and self-esteem,and boys are higher than girls;there are significant differences in screen time,body shape and physical activity in grade,which increase with grade.(2)Screen time,physical activity,body shape and self-esteem have significant relationship.Screen time can negatively predict body shape and self-esteem level,and physical activity can positively predict body shape and self-esteem level.(3)Body shape plays a part of mediating role in screen time,physical activity and self-esteem.That is,body shape can weaken the effect of screen time and body activity on self-esteem level.