Associations of the perceived and objective neighborhood environment with physical activity and sedentary time in New Zealand adolescents

Hinckson, E, Cerin, E, Mavoa, S, Smith, M, Badland, H, Stewart, T, Duncan, S and Schofield, G 2017, 'Associations of the perceived and objective neighborhood environment with physical activity and sedentary time in New Zealand adolescents', The international journal of behavioral nutrition and physical activity, vol. 14, no. 1, pp. 1-15.


Document type: Journal Article
Collection: Journal Articles

Title Associations of the perceived and objective neighborhood environment with physical activity and sedentary time in New Zealand adolescents
Author(s) Hinckson, E
Cerin, E
Mavoa, S
Smith, M
Badland, H
Stewart, T
Duncan, S
Schofield, G
Year 2017
Journal name The international journal of behavioral nutrition and physical activity
Volume number 14
Issue number 1
Start page 1
End page 15
Total pages 15
Publisher BioMed Central Ltd.
Abstract BACKGROUND: There is accumulating evidence supporting the association between neighborhood built environments and adults' physical activity (PA) and sedentary time (ST); however, few studies have investigated these associations in adolescents. A better understanding of the features of the built environment that encourage PA or ST is therefore of critical importance to promote health and wellbeing in adolescents. The aim of this study was to estimate the associations of GIS-determined and perceived walkability components in individual residential buffer zones with accelerometer-assessed moderate-to-vigorous physical activity (MVPA) and ST in adolescents.METHODS: The Built Environment in Adolescent New Zealanders (BEANZ) study was conducted in two cities (Auckland and Wellington) during the 2013-2014 academic school years. The exposure measures were subjective and objective environmental indices of activity-friendliness using four residential buffers. Road network buffers were calculated around participant's residential addresses using the sausage buffer approach at 250 m, 500 m, 1 km, and 2 km scales. A 25 m radius was used for the buffers. Data were analysed using Generalized Additive Mixed Models in R.RESULTS: Data were analysed from 524 participants (15.78 ± 1.62 years; 45% male). Participants accumulated ~114 min/day of moderate-to-vigorous PA (MVPA) and ~354 min/day of ST during accelerometer wear-time (~828 min/day). The estimated difference in MVPA between participants with the 1st and 3rd quartiles observed values on the composite subjective environmental index of activity-friendliness (perceived land use mix - diversity, street connectivity and aesthetics) was equivalent to ~8 min/day (~56 MVPA min/week) and for the objective environmental index of activity-friendliness (gross residential density and number of parks within 2 km distance from home) was ~6 min of MVPA/day (~45 MVPA min/week). When both indices were entered in a main-effect model, both indices
Subject Urban Design
Keyword(s) Accelerometer
Activity friendly
Urban environment
Youth
DOI - identifier 10.1186/s12966-017-0597-5
Copyright notice © The Author(s). 2017 Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License
ISSN 1479-5868
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