| 7-9 year-old children are in the early stage of compulsory education in Grade 1-3.The early establishment of their physical activity behavior has an important impact on the formation of a long-term,regular and positive lifestyle in the future.However,with the continuous improvement of people’s living standards and the deepening of the "win at the starting line" point of view,more and more children are bound by various electronic products and various remedial training courses,unable to actively participate in sports.The result is the decline of physical activity level and the rise of obesity rate.It is one-sided to discuss the lack of physical activity only at the level of children’s own reasons.Family,school and society are closely related to children’s physical activity.Research purpose: To explore the current situation and characteristics of physical activity of 7-9 year-old children,analyze the differences of physical activity of children of different ages and genders,investigate the daily life status of children in combination with social ecology,explore the correlation between physical activity and physical activity,and try to find out the causes of the problem from various aspects through investigation and analysis,which will be more helpful to solve the problem and help children create a positive attitude from multiple perspectives To provide reference for the study of physical activity.Survey objects and research methods: This study uses stratified sampling method to select 7-9-year-old children and their parents from three schools affiliated to Dalian Maritime University,Lingshui primary school and Bayi Road Primary School as survey objects.The methods of literature,basic shape measurement,physical activity measurement and questionnaire survey were used to investigate the level of children’s physical activity by wearing accelerometers,and parents filled in questionnaires to investigate children’s daily life and support.Data analysis mainly used t-test,one-way ANOVA,Spearman correlation analysis and other statistical methods.Conclusion:(1)MVPA of 7-year-old and 8-year-old children reached who’s recommendation,and the rate of 9-year-old children reaching the standard was only 28.6% The average daily sedentary time of boys is longer than that of girls,the rest time of girls is longer than that of boys,and the rest time of girls is longer than that of boys.(2)With the increase of age,children’s physical activity level showed a downward trend,activity intensity decreased,energy consumption decreased,sedentary time increased,and rest time after sedentary decreased.(3)Parents’ education background,physical condition,emphasis on sports and expenditure on sports will affect children’s physical activity level;school physical education curriculum times,school distance and community sports facilities will affect children’s physical activity level.(4)The questionnaire shows that: the family lives near the school,the time of children’s transfer is within half an hour,most of them are walking,most of them are mothers who take care of their children’s daily life.Quite a few parents don’t remind the children of their sedentary behavior in time.The monthly input of sports expenses is generally within 500 yuan,and most of the children don’t use electronic equipment. |