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Association of Perceived Neighbourhood Walkability with Self-Reported Physical Activity and Body Mass Index in South African Adolescents.

Published version
Peer-reviewed

Type

Article

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Authors

Lambert, Estelle V 
Guthrie-Dixon, Natalie 

Abstract

Adolescence is a life stage critical to the establishment of healthy behaviours, including physical activity (PA). Factors associated with the built environment have been shown to impact PA across the life course. We examined the sociodemographic differences in, and associations between, perceived neighbourhood walkability, PA, and body mass index (BMI) in South African adolescents. We recruited a convenience sample (n = 143; 13-18 years; 65% female) of students from three high schools (middle/high and low-income areas). Participants completed a PA questionnaire and the Neighbourhood Environment Walkability Scale (NEWS)-Africa and anthropometry measurements. Multivariable linear regression was used to examine various relationships. We found that, compared with adolescents living in middle/high income neighbourhoods, those living in low-income neighbourhoods had lower perceived walkability and PA with higher BMI percentiles. The associations between neighbourhood walkability and PA were inconsistent. In the adjusted models, land use diversity and personal safety were associated with club sports participation, street connectivity was positively associated with school sports PA, and more favourable perceived walkability was negatively associated with active transport. Overall, our findings suggest that the perceived walkability of lower income neighbourhoods is worse in comparison with higher income neighbourhoods, though the association with PA and BMI is unclear.

Description

Keywords

adolescents, environmental walkability attributes, obesity, physical activity domains, physical inactivity, residential income areas, Humans, Female, Adolescent, Male, Body Mass Index, Self Report, Walking, South Africa, Environment Design, Exercise, Residence Characteristics

Journal Title

Int J Environ Res Public Health

Conference Name

Journal ISSN

1661-7827
1660-4601

Volume Title

20

Publisher

MDPI AG
Sponsorship
Department of Health (via National Institute for Health Research (NIHR)) (16/137/34)