Biosingularity

Stand up: Your life could depend on it

Posted on: April 2, 2012

Standing up more often may reduce your chances of dying within three years, even if you are already physically active, a study of more than 200,000 people published in Archives of Internal Medicine today shows.

The study found that adults who sat 11 or more hours per day had a 40% increased risk of dying in the next three years compared with those who sat for fewer than four hours a day. This was after taking into account their physical activity, weight and health status.

“These results have important public health implications,” said study lead author Dr Hidde van der Ploeg, a senior research fellow at the University of Sydney’s School of Public Health.

“That morning walk or trip to the gym is still necessary, but it’s also important to avoid prolonged sitting. Our results suggest the time people spend sitting at home, work and in traffic should be reduced by standing or walking more.”

The results are the first landmark findings to be published from the Sax Institute’s 45 and Up Study, the largest ongoing study of healthy ageing in the Southern Hemisphere.

They showed physical activity is still beneficial: inactive people who sat the most had double the risk of dying within three years than the active people who sat least. And among the physically inactive group, those who sat the most had nearly one-third higher chance of dying than those who sat least.

The study’s size and focus on total sitting time make it an important contributor to the growing evidence on the downsides of prolonged sitting. The average adult spends 90% of their leisure time sitting down and less than half of adults meet World Health Organization physical activity recommendations.

An accompanying editorial in the journal said the evidence was strong enough to support doctors prescribing “reduced daily sitting time” to their patients.

The research was commissioned by the Cardiovascular Research Network and supported by the NSW Division of the National Heart Foundation Australia. It is one of more than 60 projects underway using data from the 45 and Up Study, Australia’s richest information source about the health and lifestyles of people 45 and over.

Heart Foundation NSW CEO Tony Thirlwell said being inactive was a major risk factor for cardiovascular disease, which is responsible for more than 17 million deaths a year worldwide.

“Watching TV, using computers and electronic games can involve sitting for long periods and have become a big part of leisure time,” he said. “But we know that people who spend less time on these things have better health than those who spend too much time on them.”

A major five-year follow-up of 45 and Up study participants has just begun and will ask 265,000 men and women more about their health, lifestyle, and the medications and health services they use. Such large-scale research will help governments face the challenges of an ageing population.

 

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1 Response to "Stand up: Your life could depend on it"

So should we be standing while we work on our computers? I know it was a trend a while back for increased productivity..

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