Cognitive performance in older women relative to ApoE-ε4 genotype and aerobic fitness
Cognitive performance in older women relative to ApoE-ε4 genotype and aerobic fitness
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DOI：
10.1249/01.mss.0000239399.85955.5e
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发表时间：
2007-01-01
期刊：
影响因子：
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通讯作者：
McLemore, Elisabeth C.
中科院分区：
文献类型：
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作者：
Etnier, Jennifer L.;Caselli, Richard J.;McLemore, Elisabeth C.
Introduction: Apolipoprotein E (ApoE) genotype and aerobic fitness are each associated with cognitive performance in older adults. However, their potentially interactive effects on cognitive performance have not been examined. Purpose: The primary purpose of this study was to determine whether ApoE genotype and aerobic fitness interact to uniquely impact memory performance and executive functioning. A secondary purpose was to examine the interactive effects on other measures of cognition to provide a more comprehensive assessment of cognitive abilities across a broad range of functions. Methods: Community-dwelling, cognitively normal older women (N = 90) provided blood samples to allow for assessment of ApoE genotype, completed cognitive tests, and performed a maximal aerobic fitness test. Primary outcome variables were the auditory verbal learning test (AVLT), the complex figures test (CFT), and the Wisconsin card-sorting task (WCST). Secondary outcome variables were the block design test and the paced auditory serial addition task (PASAT). Results: Regression analyses indicated that aerobic fitness was associated with significantly better performance on measures of the AVLT, the CFT, and the PASAT for the ApoE-epsilon 4 hornozygotes. Conclusion: The preliminary findings from this study support the possibility that aerobic fitness is positively associated with the memory performance of those individuals at most genetic risk for Alzheimer disease.
