Fast-food density and neighborhood walkability affect residents' weight and waist size

Mar 03, 2009

In a research article published recently by the American Journal of Epidemiology, Oregon Research Institute (ORI) scientist Fuzhong Li, Ph.D., and colleagues show that a high-density of fast food outlets was associated with an increase of 3 pounds in weight and .8 inches in waist circumference among neighborhood residents who frequently ate at those restaurants. In contrast, high-walkability neighborhoods were associated with a decrease of 2.7 pounds in weight and 0.6 inches in waist size among residents who increased their levels of vigorous physical activity during a one-year period.

"This is one of the few longitudinal studies that focus on change in individuals' body weight over time in relation to their lifestyle behaviors and immediate living environments," noted Dr. Li. "The uniqueness of this study lies in its environment-person approach which we use to show that health-impeding environments, such as a high density of fast-food outlets, together with residents' behavior, such as eating fast food regularly, can have an unhealthy impact on body weight. On the other hand, health-promoting environments, such as walkable neighborhood streets, in conjunction with physically active residents, can have a positive impact on body weight over time." said Dr. Li.

The study is part of the Portland Oregon Neighborhood Environment and Health Study where researchers are following a sample of over 1200 local residents ages 50-75 years old over a three-year period using anthropometric and survey measures, such as body weight, height, eating habits, food intake, physical activity, and perceptions of their immediate neighborhood environment. Researchers have also taken objective measures of built environment characteristics, such as land-use mix, density of fast-food outlets, street connectivity, & public transit stations, and the presence of green & open spaces in 120 randomly selected neighborhoods in Portland, Oregon. The overall objective of the research project is to examine change in body weight and physical activity in relation to built environment.

"To combat the obesity/overweight problem, it appears clear that, from the perspectives of public health and urban design, efforts are needed to improve features of modifiable built environments by making them more conducive to healthy eating and increasing physical activity," noted Li.

Source: Oregon Research Institute

Explore further: Tobacco firms get partial win over claims on smoking effects (Update)

Related Stories

Weighing and imaging molecules one at a time

Apr 27, 2015

Building on their creation of the first-ever mechanical device that can measure the mass of individual molecules, one at a time, a team of Caltech scientists and their colleagues have created nanodevices ...

Health checks will be seated by Sharp

Dec 08, 2014

(Phys.org) —Sharp unveiled a news-making prototype of a sensor earlier this month at Semicon Japan 2014, which took place from Dec 3 to 5. As its title suggests, Sharp's "Blood Vessel Aging Degree Sensor" ...

MIT ATLAS robot demo shows advanced moves (w/ Video)

Sep 07, 2014

The bipedal robot ATLAS from MIT is moving on. Reacting to the recent video of "MIT Atlas truckin' with a truss," TechCrunch said, "We've seen the cute little guy walk, toddle, and climb over obstacles but ...

Fitness game for the physically impaired

Feb 02, 2015

Modern IT has the potential to make fitness training more varied for people with physi- cal limitations. But what exactly is required? Fraunhofer put this question to thalidomide victims, and developed new ...

Recommended for you

Breastfeeding protects against environmental pollution

May 22, 2015

Living in a city with a high level of vehicle traffic or close to a steel works means living with two intense sources of environmental pollution. However, a study conducted by the UPV/EHU researcher Aitana ...

When it comes to hearing, diet may trump noise exposure

May 22, 2015

Although the old wives' tale about carrots being good for your eyesight has been debunked, University of Florida researchers have found a link between healthy eating and another of your five senses: hearing.

User comments : 0

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.