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Can Physical Cues Signal Dementia?
Research suggests that exercise can benefit the brain as well as the body
By Karen Pallarito
HealthDay Reporter
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FRIDAY, Aug. 15 (HealthDay News) -- Memory loss and confusion often provide the first clues to the onset of dementia. But recent research suggests that physical -- not mental -- impairment may be an earlier harbinger of trouble.
In a study involving more than 2,200 adults aged 65 and older, walking and balance problems were early indicators of future dementia. Poor handgrip was a later sign of developing dementia.
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The findings, published in the Archives of Internal Medicine, suggest a link between brain health and physical fitness.
"Maybe this will be another motivator to either keep people active or motivate them to become active if they're not," said study co-author Dr. Eric B. Larson, director of the Group Health Center for Health Studies in Seattle.
Still, one expert said it might be a bit premature to use gait and grip to detect dementia.
"This is a questionable concept, since we do not know the strength of the direction or association between physical health and mental function," said Patricia C. Heyn, clinical assistant professor of physical medicine and rehabilitation at the University of Colorado Health Sciences Center in Aurora, Colo. "Here is when we ask which comes first -- the egg or the chicken?"
Still, Heyn believes new tools sensitive enough to catch physical and cognitive changes at very early stages must be developed and studied. Today, dementia is mostly detected in advanced stages, she noted.
Added Dr. Constantine G. Lyketsos, the Elizabeth Plank Althouse Professor and chairman of psychiatry at Johns Hopkins Bayview Medical Center in Baltimore: "By being able to detect the fact that they're on the path to dementia, I think we'll be able in the future to target better therapies that might prevent the onset (of dementia) or potentially to prepare the ground for the person in the family to face the disease," he said.
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Copyright © 2008 ScoutNews, LLC. All rights reserved.
Last updated 8/15/2008
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SOURCES: Eric B. Larson, M.D., M.P.H., Center for Health Studies, Group Health Cooperative, Seattle; Patricia C. Heyn, Ph.D., clinical assistant professor, Physical Medicine and Rehabilitation Department, University of Colorado Health Sciences Center, Aurora, Colo.; Constantine G. Lyketsos, M.D., M.H.S., Elizabeth Plank Althouse Professor, and chairman, Department of Psychiatry, Johns Hopkins Bayview Medical Center, Baltimore; May 22, 2006; Archives of Internal Medicine; National Institute on Aging, Bethesda, Md.
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