A new study suggests that obese women get just one hour of vigorous exercise a year, while obese men don't do much better at fewer than four hours.
The findings startled the researchers, whose main focus was finding better ways to measure how much exercise people get.
"They're living their lives from one chair to another," said Edward Archer, a research fellow with the Nutrition Obesity Research Center at the University of Alabama at Birmingham. "We didn't realize we were that sedentary. There are some people who are vigorously active, but it's offset by the huge number of individuals who are inactive."
According to the U.S. Centers for Disease Control and Prevention, more than one in three people in the United States is obese, a step above being overweight. Obesity boosts the risk of cardiovascular problems such as heart disease and stroke, diabetes and some cancers.
In the new study, researchers examined the results of a 2005-2006 government survey of adults aged 20 to 74. Among other things, the survey tracked the weight, diet and sleep patterns of nearly 2,600 adults.
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