Run for Your Life

Aug. 12 -- MONDAY, Aug. 11 (HealthDay News) -- It may, in fact, be possible to outrun death -- and even the creeping ravages of time -- at least for a while.

Research spanning two decades has found that older runners live longer and suffer fewer disabilities than healthy non-runners.

And the findings probably apply to a variety of aerobic exercises, including walking, said the study authors, from Stanford University School of Medicine, whose findings are published in the Aug. 11 issue of the Archives of Internal Medicine.

"This is telling you that being a runner, being active is going to reduce your disability, and it's going to increase your survival," said Marcia Ory, professor of social and behavioral health at the Texas A&M Health Science Center School of Rural Public Health in College Station. "Late in life, you still see the benefit of vigorous activity."

In 1980, the study's lead author, Dr. James Fries, emeritus professor of medicine at Stanford, wrote a landmark paper outlining his "compression of morbidity" hypothesis. The theory held that regular exercise would compress, or reduce, the amount of time near the end of life when a person was disabled or unable to carry out the activities of daily living, such as walking, dressing and getting out of a chair.

"Illness would be compressed between later age of onset and age of death, and that paradigm was controversial, because it went against conventional wisdom and had no proof," Fries explained.

At the time, many experts believed that vigorous exercise would actually harm older individuals. And running, in particular, would result in an epidemic of joint and bone injuries.

But this new study proves otherwise.

Two hundred and eighty-four runners and 156 healthy "controls," or non-runners, in California completed annual questionnaires over a 21-year period. The participants were 50 years old or over at the beginning of the study and ran an average of about four hours a week. By the end of the study period, the participants were in their 70s or 80s or older and ran about 76 minutes a week.