Strength training to the elderly to ward off dementia

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(possibly preventing or slowing dementia onset )

Researchers at the University of British Columbia in Canada studied 86 women between the ages of 70 and 80 who had mild cognitive impairment, a condition where people have problems with memory or other brain functions that are noticeable but not severe enough to interfere with daily life. Predictably, this group of people is at increased risk of developing dementia. The women were divided into groups that underwent resistance training, aerobic exercise, or balance and tone training twice a week for six months.

The resistance training group had significant improvements in performance on a common test of executive brain functioning called the Stroop Test. They also had improvements in a separate test of associative memory, which refers to the ability of one thought or memory to trigger another. For example, to most humans, the color green means go. Impairment in associative memory is common in early Alzheimer’s dementia.

Using functional MRI studies among the groups, the researchers demonstrate increased blood flow to key areas of the brain that was associated with the improved performance on the cognitive tests. However, unlike in prior studies, there was no benefit of the aerobic training group on cognitive testing, though their cardiovascular performance was improved.

This is the first study that demonstrates the benefits of resistance exercises in those who already suffer from cognitive impairment. And while this is a small study that provides preliminary evidence of benefit, study author Teresa Liu-Ambrose says, “Exercise is attractive as a prevention strategy for dementia as it is universally accessible and cost-effective.”. Continue to read: kabc.com

Read more here: http://www.bnd.com/2012/02/07/2047945/obama-to-seek-more-alzheimers.html#storylink=cpy

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