May 01, 2015
By Jane Brown
If your job requires you to sit at a desk all day, new research suggests light activity, even two minutes each hour, improves longevity.
Scientists at the University of Utah studied 3000 people over the age of 20.
They found that those who had even just light activity levels, such as walking at a casual pace for an average of two minutes per hour each day, had a 33 per cent lower risk of early death. For people with chronic kidney disease, the two minute swap was even more effective, lowering early mortality by 41 percent.
Scientists used statistical techniques to examine the effect of “trading off” sedendary behaviour for different levels of activity.
“It was fascinating to see the results because the current national focus is on moderate or vigorous activity. To see that light activity had an association with lower mortality is intriguing,” said lead scientists Professor Srinivasan Beddhu, “Based on these results, we would recommend adding two minutes of walking each hour in combination with normal activities, which should include 2.5 hours of moderate exercise each week.”
You can read about the study in the Clinical Journal of the American Society of Nephrology.