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Wiley InterScience | |||||||||||||||||||||
   Annals of the New York Academy of SciencesVolume 1097 Issue Imaging and the Aging Brain, Pages 171 - 174 Published Online: 2 Apr 2007 © 2010 The New York Academy of Sciences
Abstract | References | Full Text: HTML, PDF (Size: 44K) | Related Articles | Citation Tracking  Role of Aerobic Fitness and Aging on Cerebral White Matter Integrity Copyright 2007 New York Academy of Sciences KEYWORDS aging • aerobic fitness • exercise • white matter integrity • older adults ABSTRACTAbstract: Neuroimaging research suggests that cerebral white matter (WM) integrity, as reflected in fractional anisotropy (FA) via diffusion tensor imaging (DTI), is decreased in older adults, especially in the prefrontal regions of the brain. Behavioral investigations of cognitive functioning suggest that some aspects of cognition may be better preserved in older adults who possess higher levels of aerobic fitness. There are only a few studies, however, investigating potential mechanisms for the improvements in aerobic fitness. Our study suggests that greater aerobic fitness may be related to greater WM integrity in select brain regions. | 
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