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Using built environment characteristics to predict walking for exercise.

Gina S Lovasi1, Anne V Moudon, Amber L Pearson

  • 1Institute for Social and Economic Research and Policy, Columbia University, New York, NY, USA. gl2225@columbia.edu

International Journal of Health Geographics
|March 4, 2008
PubMed
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Built environment characteristics do not predict walking for exercise. Models combining these features also failed to predict walking behavior in independent samples, indicating no significant neighborhood-level variation in physical activity.

Area of Science:

  • Public Health
  • Epidemiology
  • Urban Planning

Background:

  • Sedentary lifestyles increase disease risk; walkable environments may mitigate this.
  • Previous walkability models combined built environment features to predict walking.
  • Testing models on the same data may overestimate predictive ability; independent validation is crucial.

Purpose of the Study:

  • To test if built environment characteristics near homes predict walking for exercise.
  • To evaluate predictive models using a holdout approach and independent samples.
  • To assess neighborhood-level variation in walking for exercise.

Main Methods:

  • Used a holdout approach (training/validation sets) and evaluated models in different populations.
  • Included 1,608 healthy adults from western Washington State.

Related Experiment Videos

  • Collected physical activity data via telephone interview, focusing on cardiovascular disease relevance.

    • Main Results:

    • No single built environment characteristic significantly predicted walking for exercise.
    • Combined characteristics in regression models failed to predict walking in independent samples.
    • Validation models showed no significant predictive power; no neighborhood-level variation detected.

    Conclusions:

    • Built environment characteristics, individually or combined, did not predict walking for exercise.
    • The holdout approach confirmed the lack of predictive power for these characteristics.
    • Results suggest no significant neighborhood-level variation in walking for exercise in the studied population.