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• W2344440688 abstract "Although elderly people with amnestic mild cognitive impairment (aMCI) have been found to show impaired behavioral performance in task switching, no research has yet explored the electrophysiological mechanisms and the potential correlation between physical fitness and neurocognitive (i.e., behavio ral and electrophysiological) performance in aMCI. The present study was thus aimed to examine whether there are differences in electrophysiological (i.e., event-related potential) performance between aMCI participants and controls when performing a task-switching paradigm, and to investigate the role of physical fitness in the relationship between neurocognitive performance and aMCI. Sixty participants were classified into aMCI (n = 30) and control (n = 30) groups, and performed a task-switching paradigm with concomitant electrophysiological recording, as well as underwent senior functional physical fitness tests. The aMCI group showed comparable scores on most parts of the physical fitness tests, but reduced lower body flexibility and VO2max as compared to the control group. When performing the task-switching paradigm, the aMCI group showed slower reaction times in the heterogeneous condition and larger global switching costs, although no significant difference was observed in accuracy rates between the two groups. In addition, the aMCI group showed significantly prolonged P3 latencies in the homogeneous and heterogeneous conditions, and a smaller P3 amplitude only in the heterogeneous condition. The level of cardiorespiratory fitness was significantly correlated with P3 amplitude in the aMCI group, particularly in the heterogeneous condition of the task-switching paradigm. These results show that the aMCI group exhibited abnormalities in their neurocognitive performance when performing the task-switching paradigm and such a deficit was likely associated with reduced cardiorespiratory fitness, which was shown to be the important predictor of neurocognitive performance." @default.
• W2344440688 created "2016-06-24" @default.
• W2344440688 creator A5000575568 @default.
• W2344440688 creator A5019478885 @default.
• W2344440688 creator A5026200247 @default.
• W2344440688 creator A5050698758 @default.
• W2344440688 date "2016-06-22" @default.
• W2344440688 modified "2023-10-15" @default.
• W2344440688 title "The Role of Physical Fitness in the Neurocognitive Performance of Task Switching in Older Persons with Mild Cognitive Impairment" @default.
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• W2344440688 doi "https://doi.org/10.3233/jad-151093" @default.
• W2344440688 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/27128369" @default.
• W2344440688 hasPublicationYear "2016" @default.
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• W2344440688 citedByCount "18" @default.

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