Physical activity as a mediator of the associations between perceived environments and body mass index in Chinese adolescents

Jing jing Wang, Mei Wang, Patrick W.C. Lau, Barbara Ainsworth, Gang He, Yang Gao

Research output: Contribution to journalArticle

Abstract

This study examined whether physical activity (PA) mediated the relationships of four PA-related environmental settings (home, school, neighborhood environments and convenient facilities) with body mass index (BMI) among Chinese adolescents aged 13–18 years. Two setting indicators were assessed: (1) perceived availability of environmental resources and (2) perceived importance of environmental resources. Mediation analysis indicated that PA mediated the associations of perceived availability of the home environment, convenient facilities, and perceived importance of the school environment and BMI z-score with ratios of mediating to total effects of 46.2%, 37.1%, and 37.5% respectively. Findings suggest that PA is a mechanism by which several environmental correlates may affect adolescents’ body weight.

Original languageEnglish (US)
Pages (from-to)37-42
Number of pages6
JournalHealth and Place
Volume54
DOIs
StatePublished - Nov 1 2018

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physical activity
body mass
Body Mass Index
Exercise
adolescent
body weight
resource
resources
school
mediation
Body Weight
index

Keywords

  • Built environments
  • Exercise
  • Obesity
  • Youth

ASJC Scopus subject areas

  • Health(social science)
  • Geography, Planning and Development
  • Sociology and Political Science
  • Public Health, Environmental and Occupational Health
  • Life-span and Life-course Studies

Cite this

Physical activity as a mediator of the associations between perceived environments and body mass index in Chinese adolescents. / Wang, Jing jing; Wang, Mei; Lau, Patrick W.C.; Ainsworth, Barbara; He, Gang; Gao, Yang.

In: Health and Place, Vol. 54, 01.11.2018, p. 37-42.

Research output: Contribution to journalArticle

Wang, Jing jing ; Wang, Mei ; Lau, Patrick W.C. ; Ainsworth, Barbara ; He, Gang ; Gao, Yang. / Physical activity as a mediator of the associations between perceived environments and body mass index in Chinese adolescents. In: Health and Place. 2018 ; Vol. 54. pp. 37-42.
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