Half an hour of exercise key to health

ELDERLY men, who do 30 minutes of physical activity six days a week, are likely to have a 40% lower risk of death compared to couchpotato counterparts, researchers said.

For men in this age group, just a small amount of regular exercise – regardless of intensity – is as beneficial as giving up smoking, they said.

The evidence comes from a major project in Norway called the Oslo Study, which took four decades, from 1972 to 2011.

In it, doctors enrolled thousands of men born between 1923 and 1932, who were given health checkups and volunteered information about their lifestyle and physical activity.

The researchers were struck by the impact of regular physical exercise during the 2000-2011 period, when the volunteers were aged in their 70s or 80s.

“A mortality reduction of 40% was associated with a moderate use of time (30 minutes, six days a week) irrespective of whether the activity was light or vigorous,” their study said.

Among those who exercised vigorously – defined as hard training several times a week – the lifespan was a whopping five years longer than among those who were sedentary.

The study, led by Ingar Holme, a professor at the Norwegian School of Sports Sciences, is published online in the British Journal of Sports Medicine.

Volunteers who took part in the study after the relaunch in 2000 were the healthiest survivors of the original batch, which potentially skews some of the data.

But even when this is taken into account, the benefits of regular exercise were clear, the authors said.

“Physical activity should be targeted to the same extent as smoking with respect to public health prevention efforts in the elderly,” they said. – AFPRelaxnews