Study On Influencing Factors And Management Model Of Adolescents’ Physical Fitness In The Yangtze River Delta Region

The Yangtze River Delta region is the most active region for China’s economic development.The physical fitness level of adolescents in this region is directly related to the overall physical quality of China’s future population,which is of great significance for improving the competitiveness of talents and giving play to the exemplary role of developed regions.However,many studies show that at present,no matter in China or other countries around the world,the physical fitness problems of adolescents are endless,the detection rate of overweight and obesity is rising,and the physical quality is gradually declining,which is very serious.This study comprehensively discusses the current situation of adolescents’ physical fitness level in the Yangtze River Delta region,explores the influencing factors of adolescents’ physical fitness,and puts forward the corresponding management model of adolescents’ physical fitness,which provides theoretical basis for forming a more perfect management system of adolescents’ physical fitness in China.In this paper,1886 adolescents aged 12-17 in major cities of the Yangtze River Delta region are taken as the research object.the physical fitness level and influencing factors of adolescents are investigated by means of physical fitness test and questionnaire survey.The physical fitness level of adolescents is described from two aspects,and chi-square test,Logistic regression analysis and other mathematical statistics methods are used to study the influence of four factors on the physical fitness of adolescents.The results show that the overall overweight and obesity rate of adolescents in the "Yangtze River Delta" area is high(overweight and obesity rate is 29%),the overall physical fitness level of girls is poor(healthy physical fitness rate is 22.7%),and the physical fitness level of boys is good(healthy physical fitness rate is 71.8%).As far as the influencing factors of physical fitness are concerned,(1)in terms of eating habits,increasing the intake of fruits and vegetables and reducing the intake of snacks and sugary drinks are conducive to the healthy development of physical fitness.(2)In terms of sleep,adequate sleep time(≥8h/ day)and short sleep duration(≤ 15min)are related to better body shape and healthy physical fitness.(3)In the aspect of static behavior,too long screen time(> 2h/day)increases the risk of overweight and obesity,and shortening screen time(≤2h/ day)helps to improve physical fitness.(4)In the aspect of " family-school-community " measures,in family,the adolescents with high parental support are healthier in physical fitness and have lower risk of obesity;Adolescents whose parents accompany them to participate in sports activities have a high detection rate of health physical fitness.In schools,too much " occupied " of PE will lead to an increase in the detection rate of overweight among adolescents;High-frequency extracurricular activities(four or more times a week)correspond to a healthier physical fitness.In community,less community activities are related to abnormal physique of adolescents.At the same time,a large proportion of healthy adolescents reflect that community sports equipment and venues do not meet personal needs.Based on the theory of health ecological and ISO9000 quality management system,this paper puts forward a model of adolescent physical fitness management in the Yangtze River Delta region.This model starts from five levels: individual,family,school,community and policy environment,and forms a multi-layer physical fitness management system : physical testing → physical evaluation → health guidance → health intervention →(feedback)physical testing,with all-round monitoring and circular optimization.