Use of a spatiotemporal approach for understanding preschoolers' playground activity

Spat Spatiotemporal Epidemiol. 2020 Nov:35:100376. doi: 10.1016/j.sste.2020.100376. Epub 2020 Sep 1.

Abstract

This study used spatiotemporal hot-spot analysis to characterize physical activity on the childcare center playground. Preschool-aged children (N = 34) wore a GPS and accelerometer during 2-3 outdoor periods on one day. A spatiotemporal weights matrix was generated so that points within a specified distance in meters (space) and 3 min (time) were considered neighbors. The Getis-Ord G* statistic was calculated to detect locations of significant hot/cold spots in vector magnitude counts/15‑sec. Hot/cold spots changed within a single outdoor period and between outdoor periods, highlighting the importance of time. This approach can be used to identify points of intervention during provided outdoor time.

Keywords: Accelerometer; GPS; Hot spot; Recess.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Child Day Care Centers / statistics & numerical data*
  • Child Health
  • Child, Preschool
  • Exercise*
  • Female
  • Geographic Information Systems
  • Humans
  • Male
  • Michigan / epidemiology
  • Play and Playthings
  • Spatio-Temporal Analysis