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Area of Science:

  • Environmental Health
  • Urban Health
  • Public Health

Background:

  • Daily environments significantly influence health behaviors, but activity spaces are understudied.
  • The Everyday Environments and Experiences (E3) study investigates the link between activity spaces and health choices.

Purpose of the Study:

  • To develop a reproducible GPS processing workflow for generating time-weighted activity space exposure measures.
  • To assess non-home environmental exposures in midlife adults.

Main Methods:

  • Utilized 21 days of continuous GPS monitoring from 340 midlife adults in Cook County, Illinois.
  • Processed GPS data to derive proximity and density measures for food/physical activity locations and environmental context variables, excluding home-based time.
  • Calculated time-weighted averages of non-home environmental exposure.

Main Results:

  • Age and gender were generally unrelated to activity space measures after adjusting for environmental context.
  • Black and Hispanic participants spent less time near food and physical activity resources compared to White participants.
  • Findings suggest systemic inequities in access to healthy resources beyond neighborhood composition.

Conclusions:

  • Dynamic, time-weighted assessments of environmental exposure are crucial, moving beyond static residential measures.
  • Racial and ethnic disparities in activity spaces may reflect structural inequities impacting physical activity and healthy food access.
  • Further research is needed to link activity space disparities to disease risk and inform interventions.