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Daily Exercise Lowers Risk Of Alzheimer's

April 19, 2012

Connie K. Ho for RedOrbit.com

A new study by the neurological researchers of Rush University Medical Center has found that daily activity can reduce the onset of Alzheimers disease and cognitive decline.

The report, published in the online issue of the medical journal of the American Academy of Neurology, describes how activities done on a day-to-day basis can reduce the risk of Alzheimers.

These results provide support for efforts to encourage all types of physical activity even in very old adults who might not be able to participate in formal exercise, but can still benefit from a more active lifestyle, noted Dr. Aron S. Buchman, lead author of the study and associate professor of neurological sciences at Rush, in a prepared statement.

716 older individuals without dementia participated in the experiment by wearing an actigraph that could measure daily exercise and non-exercise physical activity. They wore the device on their wrist for ten days and, every 15 seconds, the actigraph would record an activity on a chip; if a patient didnt move at all, it would record a zero. Apart from the actigraph, participants also underwent cognitive tests to determine memory and thinking abilities as well as self-reported any social or physical activities.

This is the first study to use an objective measurement of physical activity in addition to self-reporting, explained Buchman in the statement. This is important because people may not be able to remember the details correctly.

After an average of three and a half years of follow up, 71 patients developed Alzheimers disease and the research showed that people who were in the bottom 10 percent of physical activity were three times more likely to develop Alzheimers as compared to those in the top 10 percent who participated in intense physical activity.

Our study shows that physical activity, which is an easily modifiable risk factor, is associated with cognitive decline and Alzheimers disease. This has important public health consequences, concluded Buchman in the statement.

Health professionals believe that the study can spread an important public health message.

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Daily Exercise Lowers Risk Of Alzheimer's

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