Are individuals' nighttime sleep characteristics prior to shift-work exposure predictive for parameters of daytime sleep after commencing shift work?

Are individuals' nighttime sleep characteristics prior to shift-work exposure predictive for parameters of daytime sleep after commencing shift work? Research Abstract Details 

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Are individuals' nighttime sleep characteristics prior to shift-work exposure predictive for parameters of daytime sleep after commencing shift work? Abstract Text:

Heidi M Lammers-van der Holst,Hans P A Van Dongen,Gerard A Kerkhof,

This study aimed to examine prospectively whether individual nighttime sleep characteristics at baseline (prior to shift-work exposure) are related to parameters of daytime sleep after commencing shift work. A longitudinal field study was carried out with novice police officers of the Dutch Police Force. A total of 26 subjects were examined at baseline before they entered shift work and re-examined during follow-up sessions after four and twelve months of shift-work exposure. Wrist actigraphy and sleep diaries were used to study nocturnal sleep at baseline and daytime sleep after night shifts during follow-up sessions. As outcome variables, estimated total sleep time, sleep efficiency, and subjective sleep quality were analyzed. Daytime total sleep time showed a 66 min decline during the first year of shift-work exposure. Systematic inter-individual differences were observed for daytime total sleep time and subjective sleep quality (explaining 53% and 38% of the variance, respectively), suggesting potential predictability of these sleep parameters. Although no predictors were found for daytime total sleep time, the subjective quality of nighttime sleep before the onset of shift work predicted 40% of the variance in the subjective quality of daytime sleep after commencing shift work. Follow-up studies may reveal whether the subjective quality of baseline nighttime sleep also predicts long-term overall tolerance for shift work.

Are individuals' nighttime sleep characteristics prior to shift-work exposure predictive for parameters of daytime sleep after commencing shift work? Publishing Authors By Initials

HM Lammers-van der Holst,HP Van Dongen,GA Kerkhof,

For similar human activities: work: work schedule tolerance research abstracts see: human activities: work: work schedule tolerance research

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Are individuals' nighttime sleep characteristics prior to shift-work exposure predictive for parameters of daytime sleep after commencing shift work? Journal Published:

PUBLICATION TYPE: Research Support, Non-U.S. Gov

Journal: Chronobiology international

VOLUME: 23

Page Numbers: 1217-27

Journal Abbreviation: Chronobiol. Int.

ISSN: 0742-0528

DAY: 3

MONTH: 12

YEAR: 2006

Are individuals' nighttime sleep characteristics prior to shift-work exposure predictive for parameters of daytime sleep after commencing shift work? Information

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LANGUAGE: eng

NlmUniqueID: 8501362

Are individuals' nighttime sleep characteristics prior to shift-work exposure predictive for parameters of daytime sleep after commencing shift work? Keywords Mesh Terms:

KEYWORDS: Work Schedule Tolerance

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Grant and Affiliation Information for Are individuals' nighttime sleep characteristics prior to shift-work exposure predictive for parameters of daytime sleep after commencing shift work?

AFFILIATION: Department of Psychology, University of Amsterdam, Amsterdam, The Netherlands. h.m.vanderholst@uva.nl

Country: United States

AGENCY: United States NHLBI

GRANT: HL70154

ACRONYM: HL

MEDLINETA: Chronobiol Int

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