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SPORTS MEDICINE :
ELDERLY AGING GERONTOLOGY GERIATRIC: PHYSICAL EXERCISE FITNESS AND SPORTS :
HEALTH: WOMEN :
BRAIN: HUMAN BRAIN: FUNCTION :
MEDICAL: HEART AND CARDIOVASCULAR :
RESEARCH: STUDY:
Moderate Exercise Improves Brain Blood Flow in Elderly Women
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Moderate Exercise Improves Brain Blood Flow in Elderly Women
Brisk walking several times per week ups bestows benefits in just 3 months
The American Physiological Society Press Release
http://www.the-aps.org/mm/hp/Audiences/Public-Press/Archive/2011/9.html
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WASHINGTON, DC - Research conducted at Texas Health Presbyterian
Hospital's Institute for Exercise and Environmental Medicine in Dallas
suggests that it's never too late for women to reap the benefits of
moderate aerobic exercise. In a 3-month study of 16 women age 60 and
older, brisk walking for 30-50 minutes three or four times per week
improved blood flow through to the brain as much as 15%.
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snip
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Blood Flow and the Brain
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A steady, healthy flow of blood to the brain achieves two things. First,
the blood brings oxygen, glucose and other nutrients to the brain, which
are vital for the brain's health. Second, the blood washes away brain
metabolic wastes such as amyloid-beta protein released into the brain's
blood vessels. Amyloid-beta protein has been implicated in the development
of Alzheimer's disease.
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Whether the increased blood flow to the brain improves learning and
reasoning has yet to be determined, says Dr. Zhang. "I don't have the data
to suggest a correlation between brain perfusion and cognitive function,
but this is something we eventually will see after this study is
completed," he says. "We do know there is strong evidence to suggest that
cardiovascular risk is tied to the risk for Alzheimer's disease. We want
to see how we can fight that."
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Dr. Zhang stresses the importance of the finding that improvement in
brain blood flow is possible in one's senior years. "We often start to see
a decline in brain perfusion and cognitive function in the 60s and 70s.
That's when the downward trajectory starts. We want to see how much we can
do to reverse or delay that process."
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The complete press release may be read at the URL above.
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Sincerely,
David Dillard
Temple University
(215) 204 - 4584
jwne@xxxxxxxxxx
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