Steady aerobic exercise slows dementia outbreak


Steady aerobic exercise slows dementia outbreak (study)

Even people at high risk of Alzheimer's disease can slow their progression if they exercise regularly. Alzheimer's disease is the most common degenerative brain disease that causes dementia.

The team at Southwestern Medical Center, University of Texas, USA, studied 70 adults over 55 years of age. The team randomly divided the subjects into two groups, one group doing about 30 minutes of aerobic exercise four or five times a week, and the other group doing moderate intensity flexibility exercises.

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At the start of the study, all subjects had some amyloid plaques in their brains and mild cognitive impairment. Cognitive dysfunction is considered a sign of Alzheimer's disease. Follow-up studies were conducted over a year.

In both studies, both groups maintained similar levels of mental functioning, such as memory and the ability to solve problems. However, the group doing aerobic exercise showed that the brain's hippocampus contracted less.

The hippocampus is located inside the brain cotyledon and occupies a portion of the arc in the middle of the circumferential system (limbic system). The hippocampus is known to be the first affected area for Alzheimer's disease, which plays a role in learning, memory, and awareness of new things.

"The aerobic exercise did not prevent the spread of amyloid plaques, but it did appear to delay the effects of these plaques on the brain," said Dr. Long Zhang. The effect was to reduce the degree. ”

The results of the study (Exercise Training in Amnestic Mild Cognitive Impairment: A One-Year Randomized Controlled Trial) were published in the Journal of Alzheimer's Disease.

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