Associations of Actigraphic Sleep Parameters With Fatigability in Older Adults

Abstract Background Poor sleep may increase the likelihood of fatigue, and both are common in later life. However, prior studies of the sleep–fatigue relationship used subjective measures or were conducted in clinical populations; thus, the nature of this association in healthier community-dwelling...

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Published in:The journals of gerontology. Series A, Biological sciences and medical sciences Biological sciences and medical sciences, 2020-09, Vol.75 (9), p.e95-e102
Main Authors: Alfini, Alfonso J, Schrack, Jennifer A, Urbanek, Jacek K, Wanigatunga, Amal A, Wanigatunga, Sarah K, Zipunnikov, Vadim, Ferrucci, Luigi, Simonsick, Eleanor M, Spira, Adam P
Format: Article
Language:English
Subjects:
Actigraphy
Aged
Aging
Cognitive ability
Cross-Sectional Studies
Exercise Test
Fatigue
Fatigue - etiology
Fatigue - physiopathology
Female
Humans
Male
Older people
Physical Exertion
Sleep
Sleep - physiology
Sleep and wakefulness
Sleep Wake Disorders - complications
Sleep Wake Disorders - diagnosis
Sleep Wake Disorders - physiopathology
Surveys and Questionnaires
THE JOURNAL OF GERONTOLOGY: Medical Sciences
Wrist
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Summary:Abstract Background Poor sleep may increase the likelihood of fatigue, and both are common in later life. However, prior studies of the sleep–fatigue relationship used subjective measures or were conducted in clinical populations; thus, the nature of this association in healthier community-dwelling older adults remains unclear. We studied the association of actigraphic sleep parameters with perceived fatigability—fatigue in response to a standardized task—and with conventional fatigue symptoms of low energy or tiredness. Methods We studied 382 cognitively normal participants in the Baltimore Longitudinal Study of Aging (aged 73.1 ± 10.3 years, 53.1% women) who completed 6.7 ± 0.9 days of wrist actigraphy and a perceived fatigability assessment, including rating of perceived exertion (RPE) after a 5-minute treadmill walk or the Pittsburgh Fatigability Scale (PFS). Participants also reported non-standardized symptoms of fatigue. Results After adjustment for age, sex, race, height, weight, comorbidity index, and depressive symptoms, shorter total sleep time (TST;
ISSN:1079-5006
1758-535X
DOI:10.1093/gerona/glaa137