Neuropsychological correlates of subjective fatigue in non-demented older adults and the moderating effect of physical activity

Nikhil Banerjee, Mitchell Slugh, Sonya Kaur, Ni Sun-Suslow, Katalina F. McInerney, Xiaoyan Sun, Bonnie Levin

Research output: Contribution to journalArticle

Abstract

This study examined the association between self-reported fatigue and neuropsychological performance in 167 middle-aged and older (age range: 50–91 years) adults without dementia. Participants completed the Fatigue Symptom Inventory, a comprehensive neuropsychological evaluation, and frailty assessment. Higher levels of fatigue were significantly associated with poorer attention/information processing, executive functioning, and psychomotor speed, even after controlling for depression, sleep quality, physical weakness, and other covariates. Participants endorsing moderate-severe fatigue faced higher odds (OR = 6.6, 95% CI = 1.1, 39.1) of exhibiting clinical attention/information processing impairments than those without. Moderation analyses showed that fatigue was related to select cognitive deficits among those reporting mean or lower levels of activity, but not high levels. These findings highlight fatigue as an important clinical marker of select cognitive deficits in non-demented older adults that is distinct from the common confounding conditions examined in this study. High levels of physical activity may buffer this relationship.

Original languageEnglish (US)
JournalAging, Neuropsychology, and Cognition
DOIs
StatePublished - Jan 1 2019

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Fatigue
Automatic Data Processing
Dementia
Buffers
Sleep
Biomarkers
Depression
Equipment and Supplies

Keywords

  • attention
  • cognition
  • Fatigue
  • older adults
  • physical activity

ASJC Scopus subject areas

  • Neuropsychology and Physiological Psychology
  • Experimental and Cognitive Psychology
  • Geriatrics and Gerontology
  • Psychiatry and Mental health

Cite this

Neuropsychological correlates of subjective fatigue in non-demented older adults and the moderating effect of physical activity. / Banerjee, Nikhil; Slugh, Mitchell; Kaur, Sonya; Sun-Suslow, Ni; McInerney, Katalina F.; Sun, Xiaoyan; Levin, Bonnie.

In: Aging, Neuropsychology, and Cognition, 01.01.2019.

Research output: Contribution to journalArticle

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