PHYSICAL EXERCISE AND FITNESS : MEDICAL: BRAIN: DISORDERS: Study Finds Measurable Boost for Aging Brains from Exercise

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PHYSICAL EXERCISE AND FITNESS : MEDICAL: BRAIN: DISORDERS: Study Finds Measurable Boost for Aging Brains from Exercise

David P. Dillard
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PHYSICAL EXERCISE AND FITNESS :

MEDICAL: BRAIN: DISORDERS:

Study Finds Measurable Boost for Aging Brains from Exercise

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Study Finds Measurable Boost for Aging Brains from Exercise

By Linda Searing

April 29 at 6:45 AM

Washington Post

https://www.washingtonpost.com/national/health-science/ 
study-finds-measurable-boost-for-aging-brains-from-exercise/
2017/04/28/07df745e-2b73-11e7-b605-33413c691853_story.html

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The complete article may be read at the URL above.

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http://tinyurl.com/lunxlvy

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The question

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Listing all the benefits of exercise takes a long sheet of paper. They
include stronger bones and muscles, better weight control, improved mental
health, mood enhancement and less risk for heart disease, Type 2 diabetes,
metabolic syndrome and some cancers. Do the benefits also include better
cognitive functioning after middle age?

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This study

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The researchers analyzed data from 39 studies of people 50 and older who
had been randomly assigned to a supervised exercise program involving
aerobic exercise, resistance training (such as working with weights), a
combination of aerobic and resistance, tai chi or yoga, or to a program
using a non-exercise alternative. No one was excluded based on cognitive
status. All studies measured the effects of exercise on cognition,
including attention, executive function (skills that help you get things
done) and memory.

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Standardized neuropsychological tests showed that, compared with
non-exercisers, cognitive functioning improved in those who did aerobic or
resistance exercise, regardless of cognitive abilities at the start of the
study and including those with mild cognitive impairment. Moderate to
vigorous physical exercise for 45 to 60 minutes, no matter how frequent,
yielded the greatest benefit. Tai chi also improved cognitive function.

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Who may be affected?

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People 50 and older. Everyones brain changes with age, and shrinkage in
some areas of the brain can result in memory lapses or difficulty
multitasking. The effects vary greatly from person to person. However,
research has shown that the brain is capable of regrowth and that an older
brain can learn new things, especially with intellectual stimulation.

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Aerobic exercise promotes executive functions and impacts functional
neural activity among older adults with vascular cognitive impairment

Chun Liang Hsu1,2,3,4, John R Best1,2,3,4, Jennifer C Davis1,2,3,4,
Lindsay S Nagamatsu5, Shirley Wang1,2,3,4, Lara A Boyd2,3, GY Robin
Hsiung6, Michelle W Voss7,8, Janice Jennifer Eng2,9, Teresa
Liu-Ambrose1,2,3,4

Abstract

Background

Vascular cognitive impairment (VCI) results from
cerebrovascular disease, and worldwide, it is the second most common type
of cognitive dysfunction. While targeted aerobic training is a promising
approach to delay the progression of VCI by reducing cardiometabolic risk
factors, few randomised controlled trials to date have specifically
assessed the efficacy of aerobic training on cognitive and brain outcomes
in this group at risk for functional decline.

Aim

To examine the effect of moderate-intensity aerobic training on
executive functions and functional neural activity among older adults with
mild subcortical ischaemic VCI (SIVCI).

Summary Aerobic training among older adults with mild SIVCI can improve
executive functions and neural efficiency of associated brain areas.
Future studies with greater sample size should be completed to replicate
and extend these findings.


http://dx.doi.org/10.1136/bjsports-2016-096846

http://bjsm.bmj.com/content/early/2017/04/21/bjsports-2016-096846

Statistics from Altmetric.com

Article has an altmetric score of 52

See more details

Picked up by 3 news outlets

Tweeted by 35

2 readers on Mendeley


Title

Aerobic exercise promotes executive functions and impacts functional
neural activity among older adults with vascular cognitive impairment

Published in British Journal of Sports Medicine, April 2017

DOI 10.1136/bjsports-2016-096846

Pubmed ID 28432077

Authors

Chun Liang Hsu, John R Best, Jennifer C Davis, Lindsay S Nagamatsu,
Shirley Wang, Lara A Boyd, GY Robin Hsiung, Michelle W Voss, Janice
Jennifer Eng, Teresa Liu-Ambrose[hide]

Abstract

Vascular cognitive impairment (VCI) results from cerebrovascular disease,
and worldwide, it is the second most common type of cognitive dysfunction.
While targeted aerobic training is a promising approach to delay the
progression of VCI by reducing cardiometabolic risk factors, few
randomised controlled trials to date have specifically assessed the
efficacy of aerobic training on cognitive and brain outcomes in this group
at risk for functional decline. To examine the effect of
moderate-intensity aerobic training on executive functions and functional
neural activity among older adults with mild subcortical ischaemic VCI
(SIVCI). Older adults with mild SIVCI were randomly assigned to: (1)
6-month, 3week aerobic training (n=10) or (2) usual care (control; n=11).
Participants completed functional MRI (fMRI) at baseline and trial
completion. During the fMRI sessions, behavioural performance on the
Eriksen flanker task and task-evoked neural activity were assessed. At
trial completion, after adjusting for baseline general cognition, total
white matter lesion volume and flanker performance, compared with the
control group, the aerobic training group significantly improved flanker
task reaction time. Moreover, compared with the controls, the aerobic
training group demonstrated reduced activation in the left lateral
occipital cortex and right superior temporal gyrus. Reduced activity in
these brain regions was significantly associated with improved (ie,
faster) flanker task performance at trial completion. Aerobic training
among older adults with mild SIVCI can improve executive functions and
neural efficiency of associated brain areas. Future studies with greater
sample size should be completed to replicate and extend these
findings.

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The data shown below were collected from the profiles of 35 tweeters who
shared this research output.

https://bmj.altmetric.com/details/19503096


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The complete articles may be read at the URLs provided for each.

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