Prolonged sitting: `Exercise does not offset health risks,´ say AHA

In recent years, there has been an increasing number of studies documenting the harms of sedentary behavior - defined as any waking activity that involves sitting or lying down, such as watching TV or working on the computer.

Research has repeatedly linked sedentary behavior with increased risk of obesity, cardiovascular diseases, diabetes, and more.

A study published in the American Journal of Preventive Medicine earlier this year estimated that prolonged sitting is responsible for 430,000 all-cause deaths over 54 countries, and a more recent study claimed that sedentary behavior is a leading risk factor for mortality, second only to smoking.

While some studies suggest that physical activity can offset the harms of the prolonged sitting, other research claims that is not the case.

The new statement from the American Heart Association (AHA) - published in the journal Circulation - supports the latter, finding that no matter how much exercise one does, sitting too much is detrimental to health.

'Sit less, move more'

Deborah Rohm Young, Ph.D., chair of the AHA statement and director of behavioral research at Kaiser Permanente Southern California, and colleagues reached their findings after conducting a review of the current evidence on sedentary behavior.

Highlighting the fact that Americans spend too long sitting, the review revealed that younger adults in the United States are sedentary for around 6-8 hours a day, while adults aged 60 and older spend around 8.6-9.6 hours a day sedentary. 

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Autor / Fonte:medicalnewstoday
Link: http://www.medicalnewstoday.com/articles/312356.php