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Quick returns, sleep, sleepiness and stress – An intra-individual field study on objective sleep and diary data

Kristin Öster, Philip Tucker Orcid Logo, Marie Söderström, Anna Dahlgren

Scandinavian Journal of Work, Environment & Health, Volume: 50, Issue: 6, Pages: 466 - 474

Swansea University Author: Philip Tucker Orcid Logo

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DOI (Published version): 10.5271/sjweh.4175

Abstract

Objectives Quick returns (<11 hours of rest between shifts) have been associated with shortened sleep length and increased sleepiness, but previous efforts have failed to find effects on sleep quality or stress. A shortcoming of most previous research has been the reliance on subjective measures...

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Published in: Scandinavian Journal of Work, Environment &amp; Health
ISSN: 0355-3140 1795-990X
Published: Scandinavian Journal of Work, Environment and Health 2024
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URI: https://cronfa.swan.ac.uk/Record/cronfa66923
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fullrecord <?xml version="1.0" encoding="utf-8"?><rfc1807 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"><bib-version>v2</bib-version><id>66923</id><entry>2024-07-02</entry><title>Quick returns, sleep, sleepiness and stress – An intra-individual field study on objective sleep and diary data</title><swanseaauthors><author><sid>7d07250cf5f1cbaf8788af9f48cf000a</sid><ORCID>0000-0002-8105-0901</ORCID><firstname>Philip</firstname><surname>Tucker</surname><name>Philip Tucker</name><active>true</active><ethesisStudent>false</ethesisStudent></author></swanseaauthors><date>2024-07-02</date><deptcode>PSYS</deptcode><abstract>Objectives Quick returns (&lt;11 hours of rest between shifts) have been associated with shortened sleep length and increased sleepiness, but previous efforts have failed to find effects on sleep quality or stress. A shortcoming of most previous research has been the reliance on subjective measures of sleep. The aim of this study was to combine diary and actigraphy data to investigate intra-individual differences in sleep length, sleep quality, sleepiness, and stress during quick returns compared to day-day transitions.Methods Of 225 nurses and assistant nurses who wore actigraphy wristbands and kept a diary of work and sleep for seven days, a subsample of 90 individuals with one observation of both a quick return and a control condition (day-day transition) was extracted. Sleep quality was assessed with actigraphy data on sleep fragmentation and subjective ratings of perceived sleep quality. Stress and sleepiness levels were rated every third hour throughout the day. Shifts were identified from self-reported working hours. Data was analyzed in multilevel models.Results Quick returns were associated with 1 hour shorter sleep length [95% confidence interval (CI) -1.23– -0.81], reduced subjective sleep quality (-0.49, 95% CI -0.69– -0.31), increased anxiety at bedtime (-0.38, 95% CI -0.69– -0.08) and increased worktime sleepiness (0.45, 95%CI 0.22– 0.71), compared to day-day transitions. Sleep fragmentation and stress ratings did not differ between conditions.Conclusions The findings of impaired sleep and increased sleepiness highlight the need for caution when scheduling shift combinations with quick returns.</abstract><type>Journal Article</type><journal>Scandinavian Journal of Work, Environment &amp;amp; Health</journal><volume>50</volume><journalNumber>6</journalNumber><paginationStart>466</paginationStart><paginationEnd>474</paginationEnd><publisher>Scandinavian Journal of Work, Environment and Health</publisher><placeOfPublication/><isbnPrint/><isbnElectronic/><issnPrint>0355-3140</issnPrint><issnElectronic>1795-990X</issnElectronic><keywords>actigraphy; backward rotation; fatigue; recovery; safety; shift work; work schedule tolerance</keywords><publishedDay>1</publishedDay><publishedMonth>9</publishedMonth><publishedYear>2024</publishedYear><publishedDate>2024-09-01</publishedDate><doi>10.5271/sjweh.4175</doi><url>http://dx.doi.org/10.5271/sjweh.4175</url><notes/><college>COLLEGE NANME</college><department>Psychology School</department><CollegeCode>COLLEGE CODE</CollegeCode><DepartmentCode>PSYS</DepartmentCode><institution>Swansea University</institution><apcterm>Another institution paid the OA fee</apcterm><funders>Swedish research council for health, working life and welfare (Forte) dnr 2017-02032.</funders><projectreference/><lastEdited>2024-09-13T14:30:46.3723736</lastEdited><Created>2024-07-02T13:28:46.1615865</Created><path><level id="1">Faculty of Medicine, Health and Life Sciences</level><level id="2">School of Psychology</level></path><authors><author><firstname>Kristin</firstname><surname>Öster</surname><order>1</order></author><author><firstname>Philip</firstname><surname>Tucker</surname><orcid>0000-0002-8105-0901</orcid><order>2</order></author><author><firstname>Marie</firstname><surname>Söderström</surname><order>3</order></author><author><firstname>Anna</firstname><surname>Dahlgren</surname><order>4</order></author></authors><documents><document><filename>66923__31329__a2aef05492194502b4b4dba8b98b99e2.pdf</filename><originalFilename>66923.VoR.pdf</originalFilename><uploaded>2024-09-13T14:28:03.9478741</uploaded><type>Output</type><contentLength>596004</contentLength><contentType>application/pdf</contentType><version>Version of Record</version><cronfaStatus>true</cronfaStatus><documentNotes>This work is licensed under a Creative Commons Attribution 4.0 International License.</documentNotes><copyrightCorrect>true</copyrightCorrect><language>eng</language><licence>http://creativecommons.org/licenses/by/4.0/</licence></document></documents><OutputDurs/></rfc1807>
spelling v2 66923 2024-07-02 Quick returns, sleep, sleepiness and stress – An intra-individual field study on objective sleep and diary data 7d07250cf5f1cbaf8788af9f48cf000a 0000-0002-8105-0901 Philip Tucker Philip Tucker true false 2024-07-02 PSYS Objectives Quick returns (<11 hours of rest between shifts) have been associated with shortened sleep length and increased sleepiness, but previous efforts have failed to find effects on sleep quality or stress. A shortcoming of most previous research has been the reliance on subjective measures of sleep. The aim of this study was to combine diary and actigraphy data to investigate intra-individual differences in sleep length, sleep quality, sleepiness, and stress during quick returns compared to day-day transitions.Methods Of 225 nurses and assistant nurses who wore actigraphy wristbands and kept a diary of work and sleep for seven days, a subsample of 90 individuals with one observation of both a quick return and a control condition (day-day transition) was extracted. Sleep quality was assessed with actigraphy data on sleep fragmentation and subjective ratings of perceived sleep quality. Stress and sleepiness levels were rated every third hour throughout the day. Shifts were identified from self-reported working hours. Data was analyzed in multilevel models.Results Quick returns were associated with 1 hour shorter sleep length [95% confidence interval (CI) -1.23– -0.81], reduced subjective sleep quality (-0.49, 95% CI -0.69– -0.31), increased anxiety at bedtime (-0.38, 95% CI -0.69– -0.08) and increased worktime sleepiness (0.45, 95%CI 0.22– 0.71), compared to day-day transitions. Sleep fragmentation and stress ratings did not differ between conditions.Conclusions The findings of impaired sleep and increased sleepiness highlight the need for caution when scheduling shift combinations with quick returns. Journal Article Scandinavian Journal of Work, Environment &amp; Health 50 6 466 474 Scandinavian Journal of Work, Environment and Health 0355-3140 1795-990X actigraphy; backward rotation; fatigue; recovery; safety; shift work; work schedule tolerance 1 9 2024 2024-09-01 10.5271/sjweh.4175 http://dx.doi.org/10.5271/sjweh.4175 COLLEGE NANME Psychology School COLLEGE CODE PSYS Swansea University Another institution paid the OA fee Swedish research council for health, working life and welfare (Forte) dnr 2017-02032. 2024-09-13T14:30:46.3723736 2024-07-02T13:28:46.1615865 Faculty of Medicine, Health and Life Sciences School of Psychology Kristin Öster 1 Philip Tucker 0000-0002-8105-0901 2 Marie Söderström 3 Anna Dahlgren 4 66923__31329__a2aef05492194502b4b4dba8b98b99e2.pdf 66923.VoR.pdf 2024-09-13T14:28:03.9478741 Output 596004 application/pdf Version of Record true This work is licensed under a Creative Commons Attribution 4.0 International License. true eng http://creativecommons.org/licenses/by/4.0/
title Quick returns, sleep, sleepiness and stress – An intra-individual field study on objective sleep and diary data
spellingShingle Quick returns, sleep, sleepiness and stress – An intra-individual field study on objective sleep and diary data
Philip Tucker
title_short Quick returns, sleep, sleepiness and stress – An intra-individual field study on objective sleep and diary data
title_full Quick returns, sleep, sleepiness and stress – An intra-individual field study on objective sleep and diary data
title_fullStr Quick returns, sleep, sleepiness and stress – An intra-individual field study on objective sleep and diary data
title_full_unstemmed Quick returns, sleep, sleepiness and stress – An intra-individual field study on objective sleep and diary data
title_sort Quick returns, sleep, sleepiness and stress – An intra-individual field study on objective sleep and diary data
author_id_str_mv 7d07250cf5f1cbaf8788af9f48cf000a
author_id_fullname_str_mv 7d07250cf5f1cbaf8788af9f48cf000a_***_Philip Tucker
author Philip Tucker
author2 Kristin Öster
Philip Tucker
Marie Söderström
Anna Dahlgren
format Journal article
container_title Scandinavian Journal of Work, Environment &amp; Health
container_volume 50
container_issue 6
container_start_page 466
publishDate 2024
institution Swansea University
issn 0355-3140
1795-990X
doi_str_mv 10.5271/sjweh.4175
publisher Scandinavian Journal of Work, Environment and Health
college_str Faculty of Medicine, Health and Life Sciences
hierarchytype
hierarchy_top_id facultyofmedicinehealthandlifesciences
hierarchy_top_title Faculty of Medicine, Health and Life Sciences
hierarchy_parent_id facultyofmedicinehealthandlifesciences
hierarchy_parent_title Faculty of Medicine, Health and Life Sciences
department_str School of Psychology{{{_:::_}}}Faculty of Medicine, Health and Life Sciences{{{_:::_}}}School of Psychology
url http://dx.doi.org/10.5271/sjweh.4175
document_store_str 1
active_str 0
description Objectives Quick returns (<11 hours of rest between shifts) have been associated with shortened sleep length and increased sleepiness, but previous efforts have failed to find effects on sleep quality or stress. A shortcoming of most previous research has been the reliance on subjective measures of sleep. The aim of this study was to combine diary and actigraphy data to investigate intra-individual differences in sleep length, sleep quality, sleepiness, and stress during quick returns compared to day-day transitions.Methods Of 225 nurses and assistant nurses who wore actigraphy wristbands and kept a diary of work and sleep for seven days, a subsample of 90 individuals with one observation of both a quick return and a control condition (day-day transition) was extracted. Sleep quality was assessed with actigraphy data on sleep fragmentation and subjective ratings of perceived sleep quality. Stress and sleepiness levels were rated every third hour throughout the day. Shifts were identified from self-reported working hours. Data was analyzed in multilevel models.Results Quick returns were associated with 1 hour shorter sleep length [95% confidence interval (CI) -1.23– -0.81], reduced subjective sleep quality (-0.49, 95% CI -0.69– -0.31), increased anxiety at bedtime (-0.38, 95% CI -0.69– -0.08) and increased worktime sleepiness (0.45, 95%CI 0.22– 0.71), compared to day-day transitions. Sleep fragmentation and stress ratings did not differ between conditions.Conclusions The findings of impaired sleep and increased sleepiness highlight the need for caution when scheduling shift combinations with quick returns.
published_date 2024-09-01T14:30:45Z
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score 11.036706

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