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Conference Paper: Built environment and physical activity: nine-country study of adults with objective measures

TitleBuilt environment and physical activity: nine-country study of adults with objective measures
Authors
Issue Date2015
PublisherISBNPA 2015.
Citation
The 2015 Annual Meeting of the International Society for Behavioral Nutrition and Physical Activity (ISBNPA 2015), Edinburgh, Scotland, UK., 3-6 June 2015. In Abstract Book, 2015, p. 17, abstract S1.1.3 How to Cite?
AbstractPURPOSE: The purpose of the present study was to document the strength, shape, and generalizability of associations of built environment variables to total physical activity, using objective measures of independent and dependent variables in an international sample of adults. METHODS: The International Physical activity and Environment Network (IPEN) Adult Study was a coordinated international study, with each country following standard methods as much as possible. The study design was to recruit participants from neighbourhoods selected to be high or low on walkability and high or low on income. Present analyses were done with 6822 adults aged 18-66 years from 14 cities in 9 countries from 5 continents. Seven indicators of walkability, transit access, and park access were assessed in 1-km street network buffers around each participant’s home using Geographic Information Systems (GIS)-based methods. Total minutes of moderate-to-vigorous physical activity (MVPA) were measured by 4+ days of waistworn accelerometer monitoring. Associations of environmental variables with MVPA were estimated using generalized additive mixed models (GAMMs) with Gamma variance and logarithmic link functions, and numerous covariates. RESULTS: Four of 7 individual environmental variables were significantly and linearly related to MVPA: net residential density, intersection density, transit density, and number of parks. Mixed land use variables and distance to nearest transit point were unrelated. The proportional differences in MVPA between residents living in areas with the lowest and highest observed values in individual environmental attributes ranged from ~25% to ~69%. All associations generalized across study sites (i.e., non-significant interactions with site). When adjusting for other environmental variables, only two variables remained significant, with net residential density jointly explaining 10% of between-site and 20% of between-neighbourhood differences in MVPA. CONCLUSION: Using objective data in a study of 14 cities in 9 countries, residential density, intersection density, transit access, and number of parks were positively related to total moderateto-vigorous physical activity, with residential density being the strongest correlate. Generalizability of findings across cities suggests built environment interventions hold promise as a strategy reduce the health burden of the global physical inactivity pandemic.
DescriptionConference Theme: Advancing Behavior Change Science
S1.1 Symposium - Physical environment, physical activity and sedentary behaviour – new findings from the 12-country IPEN Adult study: no. S1.1.3
Persistent Identifierhttp://hdl.handle.net/10722/218564

 

DC FieldValueLanguage
dc.contributor.authorSallis, JF-
dc.contributor.authorCerin, E-
dc.contributor.authorSalvo, D-
dc.contributor.authorAdams, M-
dc.contributor.authorFrank, L-
dc.contributor.authorConway, T-
dc.contributor.authorDe Bourdeaudhuij, I-
dc.contributor.authorOwen, N-
dc.date.accessioned2015-09-18T06:46:39Z-
dc.date.available2015-09-18T06:46:39Z-
dc.date.issued2015-
dc.identifier.citationThe 2015 Annual Meeting of the International Society for Behavioral Nutrition and Physical Activity (ISBNPA 2015), Edinburgh, Scotland, UK., 3-6 June 2015. In Abstract Book, 2015, p. 17, abstract S1.1.3-
dc.identifier.urihttp://hdl.handle.net/10722/218564-
dc.descriptionConference Theme: Advancing Behavior Change Science-
dc.descriptionS1.1 Symposium - Physical environment, physical activity and sedentary behaviour – new findings from the 12-country IPEN Adult study: no. S1.1.3-
dc.description.abstractPURPOSE: The purpose of the present study was to document the strength, shape, and generalizability of associations of built environment variables to total physical activity, using objective measures of independent and dependent variables in an international sample of adults. METHODS: The International Physical activity and Environment Network (IPEN) Adult Study was a coordinated international study, with each country following standard methods as much as possible. The study design was to recruit participants from neighbourhoods selected to be high or low on walkability and high or low on income. Present analyses were done with 6822 adults aged 18-66 years from 14 cities in 9 countries from 5 continents. Seven indicators of walkability, transit access, and park access were assessed in 1-km street network buffers around each participant’s home using Geographic Information Systems (GIS)-based methods. Total minutes of moderate-to-vigorous physical activity (MVPA) were measured by 4+ days of waistworn accelerometer monitoring. Associations of environmental variables with MVPA were estimated using generalized additive mixed models (GAMMs) with Gamma variance and logarithmic link functions, and numerous covariates. RESULTS: Four of 7 individual environmental variables were significantly and linearly related to MVPA: net residential density, intersection density, transit density, and number of parks. Mixed land use variables and distance to nearest transit point were unrelated. The proportional differences in MVPA between residents living in areas with the lowest and highest observed values in individual environmental attributes ranged from ~25% to ~69%. All associations generalized across study sites (i.e., non-significant interactions with site). When adjusting for other environmental variables, only two variables remained significant, with net residential density jointly explaining 10% of between-site and 20% of between-neighbourhood differences in MVPA. CONCLUSION: Using objective data in a study of 14 cities in 9 countries, residential density, intersection density, transit access, and number of parks were positively related to total moderateto-vigorous physical activity, with residential density being the strongest correlate. Generalizability of findings across cities suggests built environment interventions hold promise as a strategy reduce the health burden of the global physical inactivity pandemic.-
dc.languageeng-
dc.publisherISBNPA 2015.-
dc.relation.ispartofAnnual Meeting of the International Society for Behavioral Nutrition and Physical Activity, ISBNPA 2015-
dc.titleBuilt environment and physical activity: nine-country study of adults with objective measures-
dc.typeConference_Paper-
dc.identifier.emailCerin, E: ecerin@hku.hk-
dc.identifier.authorityCerin, E=rp00890-
dc.identifier.hkuros253597-
dc.identifier.spage17, abstract S1.1.3-
dc.identifier.epage17, abstract S1.1.3-
dc.publisher.placeUnited Kingdom-

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