COVID-19 pandemic may exacerbate childhood obesity, experts warn
Public health scientists predict that school closures due to the COVID-19 pandemic will exacerbate the epidemic of childhood obesity in the United States.
Dr. Andrew Rundle, associate professor of epidemiology at Columbia University Mailman School of Public Health, and colleagues expect that COVID-19-related school closures will double out-of-school time this year for many children in the U.S. and will exacerbate risk factors for weight gain associated with summer recess.
In most areas of the U.S., the COVID-19 pandemic has closed schools and some of these school systems are not expected to re-open this school year. The experiences in Hong Kong, Taiwan, and Singapore suggest that social distancing orders if lifted after short periods will have to be periodically reinstated to control COVID-19 flare-ups.
While much has been written about poor food and lack of physical activity in schools, the data show that children experience unhealthy weight gain primarily during the summer months when they are out of school. Unhealthy weight gain over the summer school recess is particularly apparent for Hispanic and African-American youth, and children who are already overweight.
"There could be long-term consequences for weight gained while children are out of school during the COVID-19 pandemic," says Rundle, who specializes in research to prevent childhood obesity. "Research shows that weight gained over the summer months is maintained during the school year and accrues summer to summer. When a child experiences obesity, even at a young age, they are at risk for higher, unhealthy weight, all the way into middle age."
DIMINISHING EXERCISE OPPORTUNITIES
As households stock up on shelf-stable foods, they appear to be purchasing ultra-processed, calorie-dense comfort foods. In regards to physical activity, social distancing and stay at home orders reduce the opportunities for exercise, particularly for children in urban areas living in small apartments.
Sedentary activities and screen time are expected to expand under social distancing orders; available data show that online video game usage is already soaring. Screen time is associated with experiencing overweight/obesity in childhood, likely because of the dual issues of sedentary time and the association between screen time and snacking.
As schools build their remote teaching capacity, they should make physical education a priority, with home lesson plans for physical activity and/or streaming exercise classes.
"The COVID-19 pandemic is responsible for widespread sickness and death, straining healthcare systems, shutting down economies and closing school districts," says Rundle. "While it is a priority to mitigate its immediate impact, it is important to consider ways to prevent its long-term effects, including new risks for childhood obesity."
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