Tracing Investigation And Insluencing Factors Of Preschool Children's Physical Fitness In Nanchang From 2017 To 2018

Research objectives:This study used a longitudinal comparison study method to analyze the physical fitness status and trends of preschool children in preschool children in Nanchang City through a questionnaire survey of preschool children aged 3-6 years in Nanchang City.The key factors for children's growth and development provide a reliable basis for scientifically and effectively promoting the healthy development of preschool children's physical fitness.Research objects and methods:This study is a longitudinal follow-up study of Nanchang City's “Focus on Preschool Children's Physical Fitness Monitoring Public Welfare Activities”.The baseline phase is conducted during the period from October to December 2017,using stratified sampling method in 12 counties and districts of Nanchang.A total of 5,769 effective preschool children(3-6 years old)were recruited in 20 kindergartens;the tracking phase was conducted from October to December 2018,and 5,919 effective preschool children were recruited in the same kindergarten(3~ 6 years old).Excluding children who did not fully participate in the two tests,the remaining 1569 valid sample sizes were used as longitudinal follow-up study data(3 to 4.5 years).In order to facilitate statistical comparison,the test results of the two stages of the study were recorded at the actual age of the children at the baseline stage.The subjects were grouped according to age and gender,and each group was 0.5 years old,for a total of 8 groups.Preschool children's baseline and follow-up test data were collected using EpiData3.1 software(EpiData Association,Odenc,Denmark),double-entry by two staff members and consistency check,and exported to SPSS 25.0 software for further analysis.The data of the state distribution are described by mean ± standard deviation(Mean ± SD),and the median is used for data that does not conform to the normal distribution.The paired sample t test was used to analyze the baseline and tracking phase data.The preschool children's tracking stage physical fitness score was the dependent variable,the parental related factors were the covariates,and the multivariate analysis of variance was used to explore the different factors for preschool children's physical health.Impact.Pearson correlation is used to analyze therelationship between children's body shape,physical activity activities,sedentary behavior and children's physical fitness.P < 0.05 in the t-test results showed a significant difference,and P < 0.01 indicates a very significant difference.Conclusion:1?The overall physical development of preschool children in Nanchang City is on the rise,and the physical development of girls is better than that of boys.2?In the tracking phase,the girl's physical form is better than that of the boy,and the boy's physical development is better than that of the girl;The growth rate of boys' qualification rate is higher than that of girls,and the overall development of physical fitness is better than that of girls.3 ? The physical quality of preschool children in Nanchang City is unevenly developed with age,especially in the development of boys' softness;boys' strength,speed,sensitivity and balance are better than girls,and girls are flexible.Quality and endurance quality are better than boys.4?Preschool children's participation in physical activity has a positive effect on the development of physical fitness,especially in the middle and high-intensity physical activity,while sedentary is not conducive to the development of children's physical fitness.5 ? The physical development of preschool children in Nanchang City is positively related to the educational level of the father,the income of the mother,and the number of times the parents take the children out to play each week.In the way of raising the children,the parental support is more conducive to the development of the child's constitution.