Influence Of Built Environment On Obesity Of Junior High School Students

Obesity is harmful to the health of children and adolescents in many aspects.Obesity in children and adolescents may also increase the risk of some diseases and premature death in adulthood.In recent years,the proportion of obesity among children and adolescents in the world is increasing,it is urgent to take corresponding measures to prevent and control the risk of obesity.The obesity of children and adolescents is affected by genetic factors,living habits,social culture,environment and other factors.Environment is related to obesity through behavior,and building urban built environment that is conducive to healthy behavior activities plays a positive role in the intervention of obesity.The research about the influence of built environment on obesity of children and adolescent students is abundant in western countries,but started relatively late in China.Most domestic studies are based on a single level,which ignores the spatial information contained in obesity itself.Moreover,most of the existing studies focus on the built environment around the students’ residence,and less attention is paid to the students’ school.This paper selects Dalian City as a case study,describes the obesity status and spatial distribution characteristics of 11-18-year-old junior high school students in the central urban area of Dalian,and presents the spatial obesity differences of junior high school students.Besides,the spatial location information and both the residence and school built environment were superimposed and analyzed,and divided into the dietary environment and physical activity environment level.Finally,multi-level logistic regression were be used to analysis the spatial differences of obesity among junior high school students,and based on the above-mentioned spatial distribution characteristics,the associations between various built environmental factors and junior high school students obesity were analyzed.The results show that the obesity status of students in the community and school levels are clustered.At the community level,the lower the economic level of the city,the higher the risk of students’ obesity.At the individual level,the age,gender and nationality of junior high school students have an impact on their obesity.Analysis from the elements of built environment around the students’ residence and school,the density of road intersection,the distance to the park square and the sports venues,the density of vegetable market and desserts may lead to the change of BMI and cause the students to be obese,and some conclusions are different from those in the West.Comprehensive analysis of the relationship between build environment and obesity from the perspective of spatial planning,land use,walkable environment,various leisure and sports facilities environment,food environment all interact with obesity.Creating a healthy daily living environment and building a green travel environment can inhibit the occurrence of obesity in junior high school students to a certain extent.Based on this,this paper puts forward a series of planning suggestions to improve junior high school students’ obesity and create a green living environment,and provide theoretical basis for government agencies to formulate policies to promote children and adolescents health,help junior high school students achieve better health.