NDLI: A systematic review of MRI studies examining the relationship between physical fitness and activity and the white matter of the ageing brain

Content Provider	PubMed Central
Author	Sexton, Claire E. Betts, Jill F. Demnitz, Naiara Dawes, Helen Ebmeier, Klaus P. Heidi, Johansen-berg
Copyright Year	2015
Abstract	Higher levels of physical fitness or activity (PFA) have been shown to have beneficial effects on cognitive function and grey matter volumes in older adults. However, the relationship between PFA and the brain's white matter (WM) is not yet well established. Here, we aim to provide a comprehensive and systematic review of magnetic resonance imaging studies examining the effects of PFA on the WM of the ageing brain. Twenty-nine studies were included in the review: eleven examined WM volume, fourteen WM lesions, and nine WM microstructure. While many studies found that higher levels of PFA were associated with greater WM volumes, reduced volume or severity of WM lesions, or improved measures of WM microstructure, a number of negative findings have also been published. Meta-analyses of global measures of WM volume and WM lesion volume yielded significant, but small, effect sizes. Overall, we found evidence for cautious support of links between PFA and WM structure, and highlighted key areas for future research including the extent to which the relationship between PFA and WM structure is anatomically specific, the influence of possible confounding factors, and the relationship between PFA, WM and cognition.
Related Links	http://dx.doi.org/10.1016/j.neuroimage.2015.09.071
Ending Page	90
Page Count	10
Starting Page	81
File Format	PDF
ISSN	10959572
e-ISSN	10959572
Journal	Neuroimage
Volume Number	131
Language	English
Publisher	Academic Press
Publisher Date	2016-05-01
Access Restriction	Open
Rights Holder	Academic Press
Subject Keyword	Research in Higher Education
Content Type	Text
Resource Type	Article
Subject	Neurology Cognitive Neuroscience

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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