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Regular Exercisers Still Face Health Risks From Too Much Sitting

Friday, November 4, 2016 6:42
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People who meet recommended weekly physical activity guidelines are still at risk of developing chronic disease if they spend too much non-exercising time sitting, new research suggests. Sedentary behavior raises disease risk and mortality rates for physically active, too.  

Peter Katzmarzyk, associate executive director for population and public health sciences at Pennington Biomedical Research Center in Baton Rouge, La., discussed the epidemiological data and other current findings about the effects of sedentary behavior on long-term health at the American Physiological Society’s Integrative Biology of Exercise 7 meeting in Phoenix.
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Studies show that spending excessive amounts of time sitting or watching television is linked with chronic health issues such as heart disease and type 2 diabetes. The American Heart Association recommends at least 150 minutes of moderate-intensity exercise each week. Habitual non-exercisers have an increased risk of premature death than people who are highly active. 

Data from the U.S. National Health and Nutrition Examination Survey show that women—especially obese women—spend more time sitting as they grow older. People of both genders with higher levels of education tend to be more sedentary, too. 
“It appears that there are independent health effects associated with excessive sitting, and that even in people who are meeting the physical activity guidelines of 150 minutes per week, there are ill health effects associated with sitting excessively during the rest of the day,” Katzmarzyk said. 

Studies that explore the association between exercise and sedentary behavior consistently show that replacing sitting time with even light activity—even though moderate-to-vigorous activity is preferred— can have a positive effect on health in the long term.

Katzmarzyk presented “Epidemiology of Sedentary Behavior” as part of the symposium “The Physiology of Sedentary Behavior, How Is It Distinguished from Physical Inactivity” on Thursday, Nov. 3 at the Hyatt Regency Phoenix. 

 

Contacts and sources:
American Physiological Society (APS)

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