title: Sleep EEG patterns and fatigue of middle-aged and older female family caregivers providing routine nighttime care for elderly persons at home.
abstract: The sleep EEGs and fatigue of 9 female family caregivers (age M=65 yr.) and 9 female noncaregivers (age M=67 yr.) were measured during two successive nights at their houses. Perceived quality of sleep was measured by the Sleep Evaluation Questionnaire. Fatigue was measured by a self-rated questionnaire, the Perceived Symptoms of Fatigue, and by critical flicker fusion (CFF) frequency. The caregivers had a significantly higher percentage of Stage 1 and a lower percentage of Stage 2 during the 2nd cycle and a higher percentage of Stages 3+4 during the 3rd cycle than those of the noncaregivers. Caregivers had significantly higher percentages of EEG waves of 7-9 Hz in the 1st cycle and 6-9 Hz in the 2nd cycle and significantly lower percentages of 2-3 Hz in the 1st cycle than those of the noncaregivers. The caregivers reported a lower quality of sleep and higher perceived fatigue symptoms and also lower CFF frequency (increased physiological fatigue) than noncaregivers. The caregivers' sleep EEGs were associated with their higher sleep needs and fatigue.
authors.affiliation: Oita University of Nursing and Health Sciences, Japan. sator@adm.ncn.ac.jp
authors.forename: Reiko
authors.initials: R
authors.lastname: Sato
authors.forename: Katsuya
authors.initials: K
authors.lastname: Kanda
authors.forename: Mitoko
authors.initials: M
authors.lastname: Anan
authors.forename: Shigeaki
authors.initials: S
authors.lastname: Watanuki
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D017028:Caregivers / Q000523:psychology*; D002940:Circadian Rhythm; D017281:Cost of Illness; D004569:Electroencephalography; D005221:Fatigue / Q000523:psychology*; D005260:Female; D005425:Flicker Fusion; D005583:Fourier Analysis; D016330:Frail Elderly; D006801:Humans; D008297:Male; D008875:Middle Aged; D017286:Polysomnography; D012684:Sensory Thresholds; D012815:Signal Processing, Computer-Assisted; D012894:Sleep Stages