| The stratified cluster sampling method was adopted for all middle schools in Ganzhou City,Jiangxi Province,which were selected by the 2019 National Student Physical and Health Survey,and physical fitness tests were conducted on 13-18 year-old middle school students in Ganzhou City.At the same time,the selected students and their parents were distributed Physical fitness questionnaire to analyze the impact of adolescent physical activity level and "home school" factors on physical health,aiming to grasp the physical health status of 13-18 year old middle school students in Ganzhou City,trying to find out the physical activity level and "home school" that affect physical health The "Community" key factor provides a theoretical basis for further enhancing the physical fitness of adolescents.Research result:(1)The pass rate of the physical fitness of male and female students in Ganzhou middle school is 85.7% and 91.4% respectively.Among the individual physical fitness indicators,boys have the highest pass rate at 50 meters(92.9%),the lowest pass rate for pull-ups(24.3%);girls have the highest pass rate for sit-ups(93.2%),and the lowest pass rate for 800 meters(73.1%).(2)The body shape,vision,and lower extremity of Ganzhou township boys and girls are superior to the city;the township girls are better than the city in physiology and boys' flexibility,muscle strength,and endurance;the city girls are better than the township(P <0.01).(3)The number of MVPA days for a 13-18 year old middle school student in Ganzhou is 3-4 days a week.The screen time on weekends for urban and rural students and the extracurricular homework time for urban students exceed 2h.The MVPA days,screen time and extracurricular homework time of urban and rural,male and female,junior and high school students were significantly different(P <0.05).(4)The physical activity factors that affect the physical health of 13-18 year old middle school students in Ganzhou are: MVPA,screen time and extracurricular homework time(P <0.05).(5)The “home-school community” factors that affect the physical health of 13-18 year old middle school students in Ganzhou are: parents 'education,occupation,family income,parents' physical activity,parental encouragement and companionship,and family sports money investment;school venue equipment,extracurricular sports Exercise time and atmosphere,and transportation methods for students to go to and from school;community free youth sports training,community youth sports organizations and community exercise facilities(P <0.05).Analysis conclusion:(1)In 2019,Ganzhou 's 13-18 year-old middle school students 'physical fitness pass rate is highest for boys at 50 meters,and the lowest pass rate for pull-ups;girls have the highest pass rate for sit-ups and the lowest pass rate for 800 meters;lung capacity and vision levels With age,the trend is declining,and the overall fitness qualification rate is lower than the average level of Jiangxi Province in 2014.(2)The differences in physical health between urban and rural areas of 13-18 year-old middle school students in Ganzhou City are as follows: the body shape,vision,and lower limb explosiveness of township boys and girls are better than cities;the physical function of township girls and the flexibility,muscle strength,and endurance quality of boys are better than cities;The flexibility of urban girls is superior to townships.(3)The MVPA of urban and rural middle school students aged 13 to 18 in Ganzhou is low,the screen time on weekends is longer,and the urban students have longer homework time;the MVPA level and screen time of urban students are less than that of townships,and the extracurricular homework time is more than townships;girls MVPA days and screen time are less than boys,and extracurricular homework time is more than boys;high school students have less extracurricular homework time than junior high school.(4)The low MVPA level on study days and weekends,the long screen time and the length of extracurricular homework are the main factors of physical activities that are unqualified for various physical health indicators of 13-18 year old middle school students in Ganzhou(5)Parental education,occupation,family income,parental physical activity level,parental encouragement,parental companionship,family sports money investment in family factors,venue equipment,extracurricular physical exercise time,extracurricular physical exercise atmosphere,school transportation The choice of methods,free development of youth sports training,establishment of youth sports organizations,and exercise facilities in the community factors are the main influencing factors of the “home school community” of various physical fitness indexes of 13-18 year old middle school students in Ganzhou.Among them,family factors have a greater impact on physical fitness and overall performance,and community factors have a greater impact on physical fitness and vision. |