“Honey, does this town make me look fat?”
“Yes, Dear, I’m afraid it does.”
No, that really wasn’t a typo in the first line. I intended to type “town” and not “gown.” A recent article by Dionysus Powell in healthcareinamerica.us has prompted me to think a bit more about the relationship between obesity and the communities we inhabit (“Fit Cities vs. Fat Cities – What available data can tell us about the difference in lifestyle and obesity between cities,” by Dionysus Powell, March 28, 2017). The author is a biotech researcher who has collected readily available Centers for Disease Control and Prevention data on body mass index (BMI) and self-reported sedentary behavior in almost 200 U.S. cities. He then sliced and diced these numbers with each cities’ walkability score, which is a crude measure of how easily citizens and visitors on foot can reach a variety of destinations such as shops, schools, churches, libraries, and municipal offices. You can easily find your own town’s score by going to walkscore.com.
Dr. William G. Wilkoff
Not surprisingly, the author discovered that “differences in obesity rates between cities can largely be explained by differences in physical activity.” Of course, there is a point at which a community has sufficient walkable infrastructure so that its obesity rate is a result of the citizens choosing not to walk rather than the community’s failure to provide pedestrians with enough connectivity to do their daily errands on foot. That threshold point appears to be a walkability score of 50, yet Mr. Powell observes that most American cities fail to reach even that minimum.
Although rich people tend to have better health outcomes than poor people, and there is a “general trend for richer cities to be more physically active than poorer cities,” Mr. Powell could not find a relationship between a city’s median income and its walkability.
If, like most of us, you have been frustrated in your efforts to lower the BMI of your patients, it may be time to emerge from the confines of your office and take a look at your town’s walkability score. If it is less than 50, you and your fellow concerned citizens and officials have some work to do. It may mean advocating for improved pedestrian infrastructure and/or dismantling the physical and zoning barriers to pedestrian connectivity. For example, maybe your community should be adding more pedestrian-activated crossing signals or tapping into federal and state safe routes to school programs or adopting zoning ordinances that require sidewalks in all new developments.
Here in Brunswick, we have a very enviable walkability score of 87, meaning “most errands can be accomplished on foot.” We have a bicycle and pedestrian advisory committee that reports to the town council and works with the town engineer to advocate for infrastructure improvements that encourage pedestrian connectivity. However, funding these improvements in walkability is always a challenge. But as the analysis in this recent study suggestions, our biggest challenge continues to be encouraging our citizens to take advantage of our existing pedestrian infrastructure.
Dr. Wilkoff practiced primary care pediatrics in Brunswick, Maine for nearly 40 years. He has authored several books on behavioral pediatrics, including “How to Say No to Your Toddler.” Email him at pdnews@frontlinemedcom.com.