The research included more than 123,000 people aged 60 and older, with means to follow-up time of 10 years. Compared to those who were inactive, those with low levels of activity were 22 percent less likely to die during the study period, as found by the investigators.
Also, for people with medium and high levels of physical activity, the risk of dying during the study was reduced by 28 percent and 35 percent, compared to people who weren't active at all.
The findings were scheduled to be presented Tuesday at the European Society of Cardiology meeting in Sophia Antipolis, France.
However, the study wasn't designed to prove a cause-and-effect relationship, but the result show that the more physical activity older adults do, the greater the health benefit. And vise versa.
According to Dr. David Hupin, of the University Hospital of Saint-Etienne, France, the low level of exercise is equivalent to a 15-minute brisk walk each day.
"Age is not an excuse to do no exercise," he said in a society news release. "But less than half of older adults achieve the recommended minimum of 150 minutes moderate intensity or 75 vigorous intensity exercise each week."
However, Hupin said that people shouldn't make drastic changes to the amount of activity in their lives. Instead, they should progressively increase the amount of activity they're doing, he suggested.
"Fifteen minutes a day could be a reasonable target for older adults. Small increases in physical activity may enable some older adults to incorporate more moderate activity and get closer to the recommended 150 minutes per week," he concluded.
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