Exercise may lower risk for Parkinson's disease

April 23, 2007

BOSTON -- The risk of developing Parkinson's disease may be reduced with moderate to vigorous exercise or other recreational activities, according to research that will be presented at the American Academy of Neurology's 59th Annual Meeting in Boston, April 28 - May 5, 2007.

The study followed more than 143,000 people with an average age of 63 over 10 years. In that time, 413 people developed Parkinson's disease. Researchers found that those with moderate to vigorous activity levels were 40 percent less likely to develop Parkinson's disease than those with no or light activity levels. Those with moderate to vigorous activity were exercising an average of a half hour per day or more.

"This study does not prove that exercise caused the lowered risk of Parkinson's disease - it's possible that something else lowers the risk," said the study's lead author Evan L. Thacker, SM, from the Harvard School of Public Health in Boston, MA. "But considering all of the other benefits of exercise, it certainly doesn't hurt to make sure you get some moderate or vigorous exercise several times a week."

The researchers also looked at the participants' activity level at age 40 and found that there was no significant relationship between the level of physical activity at age 40 and the risk of developing Parkinson's disease.

"If exercise truly does provide some protection against Parkinson's disease, the protection may be relatively short term," Thacker said. "However, in a previous study with a similar prospective design activity in early adulthood was related to lower risk for Parkinson's disease, so the jury's still out on this one."
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EMBARGOED FOR RELEASE UNTIL 4 P.M. ET, MONDAY, APRIL 23, 2007
Media Contacts:
Robin Stinnett, (651) 695-2763, rstinnett@aan.com
AAN Press Room HCC 203 (April 28 - May 4): (617) 954-3126

The study was supported by grants from the National Institute of Neurological Disorders and Stroke and National Institutes of Health.

The American Academy of Neurology, an association of over 20,000 neurologists and neuroscience professionals, is dedicated to improving patient care through education and research. A neurologist is a doctor with specialized training in diagnosing, treating and managing disorders of the brain and nervous system such as Alzheimer's disease, epilepsy, multiple sclerosis, Parkinson's disease, and stroke. For more information about the American Academy of Neurology, visit www.aan.com.

Editor's Note: Mr. Thacker will present this research during a scientific platform session at 2:00 p.m. ET on Tuesday, May 1, 2007, in Ballroom C of the Hynes Convention Center.

American Academy of Neurology

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