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Parenthood Squashes Workout Time

Study Shows New Parents More Likely Than Newlyweds to Become More Sedentary
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WebMD Health News
Reviewed by Louise Chang, MD

June 1, 2007 -- Getting married doesn't affect workout habits much, but becoming a parent definitely makes people more sedentary, according to a new study that followed more than 800 people over two years.

While new parents may feel like they are always on the go, their physical activity levels -- including planned workouts and activities such as walking around the mall or gardening -- actually decline, says Ethan Hull, MEd, an exercise physiologist at the University of Pittsburgh. Hull presented the findings at the American College of Sports Medicine annual meeting in New Orleans.

"There was no significant change in physical activity with marriage, but with parenthood, physical activity definitely went down," Hull tells WebMD.

Physical Activity Study

Hull and his research team followed 843 men and women, on average 24 years old at the study's start, for two years. They answered a questionnaire about their physical activity levels at the beginning of the study and two years later. They also reported if they had married or become parents in the interim. During the study, 99 of the 383 men and women who were single at the start got married; 40 of the 460 childless men and women became parents.

While physical activity declined overall among all participants, it took the biggest hit among new parents.

At the start of the study, the median amount of physical activity (half got more, half got less) reported by all participants per week was 6 hours and 20 minutes, or a little less than an hour a day, Hull says.

Men's activity levels declined more than women's as they became parents, Hull also found. That could be because they were more active than women at the start of the two-year study, he says.

"Men who stayed childless lost about 50 minutes a week in activity [from study start to end]," he says. "Men who became parents lost 4.5 hours a week. Women who stayed childless lost about 20 minutes a week. Women who became parents lost an hour and 20 minutes a week."

Overall, men and women who became parents lost three hours and 20 minutes a week in physical activity, while those who remained childless lost 30 minutes per week, he says.

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