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      • HARVEST
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      PERCEIVED AND OBJECTIVE NEIGHBOURHOOD BUILT ENVIRONMENT MEASURES AND ASSOCIATION WITH PHYSICAL ACTIVITY AND SEDENTARY TIME IN 9-14-YEAR-OLD CHILDREN IN SASKATOON, CANADA

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      GOON-THESIS-2019.pdf (1.902Mb)
      Date
      2019-08-07
      Author
      Goon, Shatabdi 1989-
      Type
      Thesis
      Degree Level
      Masters
      Metadata
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      Abstract
      Background: Canadian children and youth are not getting enough physical activity (PA), and spend on average 8.6 waking hours of their day in a sedentary state. Current trends of PA behavior among children are concerning; has prompted research investigating the correlates and determinants of PA in young people. The neighbourhood built environment (BE) has increasingly been identified as an important potential contributor to levels of PA. However, the scientific evidence of BE influences on children’s PA is still developing, compared to that among adults. A better understanding whether and how BE influence children's PA behaviors may help to identify interventions to promote active lifestyles from childhood. Research aim: This study seeks to examine the potential influences of both children’s perceived and objective BE attributes on objectively-assessed multiple PA outcomes, specifically: Light physical activity (LPA), Moderate-to-vigorous physical activity (MVPA), and Sedentary time (ST), in children aged 9-14 years living in Saskatoon, Canada. Methodology: This study draws on data from the Smart Cities Healthy Kid’s (SCHK), and subsequent Seasonality and Active Saskatoon Kids (SASK) study. Children aged 9-14 years were recruited from the prairie city of Saskatoon, Canada. Neighborhood-scale objective BE characteristics were collected by independent trained assessors using two validated, replicable audit tools (Neighborhood Active Living Potential, NALP, and Irvine Minnesota Inventory, IMI). Children were surveyed on their perceptions of their neighbourhood BE and PA outcomes were objectively monitored (using accelerometer) for one week at three different time periods over a 1 year period. Using a mixed effect model, a multilevel modeling approach was taken to understand the association between BE characteristics and children’s PA outcomes. Results: Children’s perceived availability of parks and sidewalks predicted higher accumulation of MVPA and lower accumulation of ST in children. Children’s report of the absence of neighbourhood social disorder (e.g. threats from scary dogs/people) was associated with increased LPA, while reported concern for crime was associated with decreased MVPA. As expected, the highest level of observed activity friendliness was associated with decreased ST, however, the highest level of observed safety from crime was associated with increased ST and decreased PA. Conclusion: Overall safe, walkable, and activity friendly neighbourhoods were found to influence children's activity behaviors. Even so, perceptions of the BE were more strongly associated with children’s PA outcomes than with objectively measured BE. Further context-specific studies and understanding of the policy process that influence changes are required.
      Degree
      Master of Science (M.Sc.)
      Department
      Community Health and Epidemiology
      Program
      Community and Population Health Science
      Supervisor
      Muhajarine, Nazeem
      Committee
      Engler Stringer, Rachel; Leis, Anne; Kontulainen, Saija
      Copyright Date
      July 2019
      URI
      http://hdl.handle.net/10388/12246
      Subject
      Physical activity
      Sedentary behavior
      Neighbourhoods
      Built environment
      Objective measures
      Perception
      Children.
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      • Graduate Theses and Dissertations
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