Up until now, obesity research has focused on ways to change individual behavior but with obesity rates continuing to climb, researchers are now turning their efforts to the built environment and the interventions that might be effective in fighting the epidemic. Working with various city departments, Andrew Rundle, DrPH, assistant professor in the Department of Epidemiology at the Mailman School, and his research team, are gathering data on neighborhood features such as land use, density of bus and subway stops, availability of nutritious food, the location and quality of parks and recreation facilities -- even the number of trees on a street and the number of buildings with elevators -- that affect a person's diet and activity levels. Upon completion of the research, Dr. Rundle expects to have a large base of evidence linking the built environment to body size.
In some preliminary results, Dr. Rundle found that people who live in neighborhoods that have a mixture of residential and commercial uses have lower levels of obesity than people who live in neighborhoods that are closer to being 100 percent residential. "The more mixed an area, the skinnier people are," according to Dr. Rundle. "Mixing supports walking, it supports incidental activity and it makes you independent of an automobile." The data also indicates that as the density of bus and subway stops increases in a neighborhood, the body size of residents goes down. Again, it is thought that public transit allows residents to be private automobile in
Contact: Stephanie Berger
Columbia University's Mailman School of Public Health