Related Experiment Video
Updated: Dec 30, 2025

Trajectory Data Analyses for Pedestrian Space-time Activity Study
Published on: February 25, 2013
Spatial clustering patterns and regional variations for food and physical activity environments across the United
Marilyn E Wende1, Ellen W Stowe1, Jan M Eberth2,3
1Department of Health Promotion, Education, and Behavior, Arnold School of Public Health, University of South Carolina, USA.
Abstract:
This study examined spatial patterns of obesogenic environments for US counties. We mapped the geographic dispersion of food and physical activity (PA) environments, assessed spatial clustering, and identified food and PA environment differences across U.S. regions and rurality categories. Substantial low food score clusters were located in the South and high score clusters in the Midwest and West. Low PA score clusters were located in the South and high score clusters in the Northeast and Midwest (p < .0001). For region, the South had significantly lower food and PA environment scores. For rurality, rural counties had significantly higher food environment scores and metropolitan counties had significantly higher PA environment scores (p < .0001). This study highlights geographic clustering and disparities in food and PA access nationwide. State and region-wide environmental inequalities may be targeted using structural interventions and policy initiatives to improve food and PA access.
More Related Videos
Related Concept Videos
Distribution and Dispersion
Selected Data About Geographic Locations
Levels of Use of a GIS
Dimensions of Health and Illness
Environmental Influences on Intelligence
Sampling Plans
Random sampling is a method where each member of the population has an equal chance of being selected for the sample. It involves selecting individuals randomly, often using random number generators or lottery-type methods. For example, when analyzing the properties of a...

