Impact of Mandatory Wake Time on Sleep Timing, Sleep Quality and Rest-Activity Cycle in College and University Students Complaining of a Delayed Sleep Schedule: An Actigraphy Study

Christophe Moderie,1,2 Solenne Van der Maren,1,3 Jean Paquet,1 Marie Dumont1,4 1Center for Advanced Research in Sleep Medicine, Sacre-Coeur Hospital, CIUSSS-NIM, Montreal, Quebec, Canada; 2Department of Psychiatry, McGill University, Montreal, Quebec, Canada; 3Department of Psychology, University of...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Moderie C, Van der Maren S, Paquet J, Dumont M
Formato:	article
Lenguaje:	EN
Publicado:	Dove Medical Press 2020
Materias:	sleep schedule circadian sleep disorders chronotype ambulatory recordings delayed sleep-wake phase disorder social jetlag Psychiatry RC435-571 Neurophysiology and neuropsychology QP351-495
Acceso en línea:	https://doaj.org/article/5265ead4d23542e98ed684c072bf1309
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:5265ead4d23542e98ed684c072bf1309
record_format	dspace
spelling	oai:doaj.org-article:5265ead4d23542e98ed684c072bf13092021-12-02T09:35:25ZImpact of Mandatory Wake Time on Sleep Timing, Sleep Quality and Rest-Activity Cycle in College and University Students Complaining of a Delayed Sleep Schedule: An Actigraphy Study1179-1608https://doaj.org/article/5265ead4d23542e98ed684c072bf13092020-06-01T00:00:00Zhttps://www.dovepress.com/impact-of-mandatory-wake-time-on-sleep-timing-sleep-quality-and-rest-a-peer-reviewed-article-NSShttps://doaj.org/toc/1179-1608Christophe Moderie,1,2 Solenne Van der Maren,1,3 Jean Paquet,1 Marie Dumont1,4 1Center for Advanced Research in Sleep Medicine, Sacre-Coeur Hospital, CIUSSS-NIM, Montreal, Quebec, Canada; 2Department of Psychiatry, McGill University, Montreal, Quebec, Canada; 3Department of Psychology, University of Montreal, Montreal, Quebec, Canada; 4Department of Psychiatry, University of Montreal, Montreal, Quebec, CanadaCorrespondence: Marie DumontCenter for Advanced Research in Sleep Medicine (J-5185), Sacre-Coeur Hospital of Montreal, CIUSSS-NIM, 5400 Boul. Gouin Ouest, Montreal, QC H4J 1C5, CanadaTel +1 514 338 2222, x-2246Fax +1 514 338 2531Email Marie.dumont@umontreal.caBackground: Individuals complaining of a delayed sleep schedule are expected to have shorter sleep duration and lower sleep quality when they must comply with morning obligations. The changes in the sleep schedule imposed by morning obligations may in turn decrease the stability and amplitude of their rest-activity cycle. These expectations were only partially supported in previous studies, possibly due to poor differentiation between days with mandatory or free wake times.Participants: Fourteen college/university students (8 women) with a complaint of a late sleep schedule and a bedtime after midnight were compared to fourteen controls with an earlier sleep schedule and no complaint.Methods: During a week of 24-h activity recording, participants specified in their sleep diary whether their wake time was free or determined by an obligation.Results: The number of nights with mandatory wake times was similar in the two groups. Groups were also similar for sleep duration and sleep quality over the 7 days of recording. Actigraphic sleep efficiency was the same in the two groups for both free and mandatory wake times, but subjective sleep quality decreased on the nights with mandatory wake time in both groups. On the nights with mandatory wake time, delayed participants had shorter sleep episodes and less total sleep time than controls. Rest-activity cycle amplitude was lower in the delayed group whether wake time was free or mandatory.Conclusion: Sleep duration and total sleep time differed between the two groups only when wake time was mandatory. Prior to mandatory wake times, delayed participants kept the same bedtime and shortened their sleep; sleep latency and sleep efficiency were preserved but subjective sleep quality and alertness on awakening decreased compared to nights with free wake time. Lower amplitude of the rest-activity cycle in delayed subjects may reflect lifestyle differences compared to control participants.Keywords: sleep schedule, circadian sleep disorders, chronotype, ambulatory recordings, delayed sleep-wake phase disorder, social jetlagModerie CVan der Maren SPaquet JDumont MDove Medical Pressarticlesleep schedulecircadian sleep disorderschronotypeambulatory recordingsdelayed sleep-wake phase disordersocial jetlagPsychiatryRC435-571Neurophysiology and neuropsychologyQP351-495ENNature and Science of Sleep, Vol Volume 12, Pp 365-375 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	sleep schedule circadian sleep disorders chronotype ambulatory recordings delayed sleep-wake phase disorder social jetlag Psychiatry RC435-571 Neurophysiology and neuropsychology QP351-495
spellingShingle	sleep schedule circadian sleep disorders chronotype ambulatory recordings delayed sleep-wake phase disorder social jetlag Psychiatry RC435-571 Neurophysiology and neuropsychology QP351-495 Moderie C Van der Maren S Paquet J Dumont M Impact of Mandatory Wake Time on Sleep Timing, Sleep Quality and Rest-Activity Cycle in College and University Students Complaining of a Delayed Sleep Schedule: An Actigraphy Study
description	Christophe Moderie,1,2 Solenne Van der Maren,1,3 Jean Paquet,1 Marie Dumont1,4 1Center for Advanced Research in Sleep Medicine, Sacre-Coeur Hospital, CIUSSS-NIM, Montreal, Quebec, Canada; 2Department of Psychiatry, McGill University, Montreal, Quebec, Canada; 3Department of Psychology, University of Montreal, Montreal, Quebec, Canada; 4Department of Psychiatry, University of Montreal, Montreal, Quebec, CanadaCorrespondence: Marie DumontCenter for Advanced Research in Sleep Medicine (J-5185), Sacre-Coeur Hospital of Montreal, CIUSSS-NIM, 5400 Boul. Gouin Ouest, Montreal, QC H4J 1C5, CanadaTel +1 514 338 2222, x-2246Fax +1 514 338 2531Email Marie.dumont@umontreal.caBackground: Individuals complaining of a delayed sleep schedule are expected to have shorter sleep duration and lower sleep quality when they must comply with morning obligations. The changes in the sleep schedule imposed by morning obligations may in turn decrease the stability and amplitude of their rest-activity cycle. These expectations were only partially supported in previous studies, possibly due to poor differentiation between days with mandatory or free wake times.Participants: Fourteen college/university students (8 women) with a complaint of a late sleep schedule and a bedtime after midnight were compared to fourteen controls with an earlier sleep schedule and no complaint.Methods: During a week of 24-h activity recording, participants specified in their sleep diary whether their wake time was free or determined by an obligation.Results: The number of nights with mandatory wake times was similar in the two groups. Groups were also similar for sleep duration and sleep quality over the 7 days of recording. Actigraphic sleep efficiency was the same in the two groups for both free and mandatory wake times, but subjective sleep quality decreased on the nights with mandatory wake time in both groups. On the nights with mandatory wake time, delayed participants had shorter sleep episodes and less total sleep time than controls. Rest-activity cycle amplitude was lower in the delayed group whether wake time was free or mandatory.Conclusion: Sleep duration and total sleep time differed between the two groups only when wake time was mandatory. Prior to mandatory wake times, delayed participants kept the same bedtime and shortened their sleep; sleep latency and sleep efficiency were preserved but subjective sleep quality and alertness on awakening decreased compared to nights with free wake time. Lower amplitude of the rest-activity cycle in delayed subjects may reflect lifestyle differences compared to control participants.Keywords: sleep schedule, circadian sleep disorders, chronotype, ambulatory recordings, delayed sleep-wake phase disorder, social jetlag
format	article
author	Moderie C Van der Maren S Paquet J Dumont M
author_facet	Moderie C Van der Maren S Paquet J Dumont M
author_sort	Moderie C
title	Impact of Mandatory Wake Time on Sleep Timing, Sleep Quality and Rest-Activity Cycle in College and University Students Complaining of a Delayed Sleep Schedule: An Actigraphy Study
title_short	Impact of Mandatory Wake Time on Sleep Timing, Sleep Quality and Rest-Activity Cycle in College and University Students Complaining of a Delayed Sleep Schedule: An Actigraphy Study
title_full	Impact of Mandatory Wake Time on Sleep Timing, Sleep Quality and Rest-Activity Cycle in College and University Students Complaining of a Delayed Sleep Schedule: An Actigraphy Study
title_fullStr	Impact of Mandatory Wake Time on Sleep Timing, Sleep Quality and Rest-Activity Cycle in College and University Students Complaining of a Delayed Sleep Schedule: An Actigraphy Study
title_full_unstemmed	Impact of Mandatory Wake Time on Sleep Timing, Sleep Quality and Rest-Activity Cycle in College and University Students Complaining of a Delayed Sleep Schedule: An Actigraphy Study
title_sort	impact of mandatory wake time on sleep timing, sleep quality and rest-activity cycle in college and university students complaining of a delayed sleep schedule: an actigraphy study
publisher	Dove Medical Press
publishDate	2020
url	https://doaj.org/article/5265ead4d23542e98ed684c072bf1309
work_keys_str_mv	AT moderiec impactofmandatorywaketimeonsleeptimingsleepqualityandrestactivitycycleincollegeanduniversitystudentscomplainingofadelayedsleepscheduleanactigraphystudy AT vandermarens impactofmandatorywaketimeonsleeptimingsleepqualityandrestactivitycycleincollegeanduniversitystudentscomplainingofadelayedsleepscheduleanactigraphystudy AT paquetj impactofmandatorywaketimeonsleeptimingsleepqualityandrestactivitycycleincollegeanduniversitystudentscomplainingofadelayedsleepscheduleanactigraphystudy AT dumontm impactofmandatorywaketimeonsleeptimingsleepqualityandrestactivitycycleincollegeanduniversitystudentscomplainingofadelayedsleepscheduleanactigraphystudy
_version_	1718398065272946688

Impact of Mandatory Wake Time on Sleep Timing, Sleep Quality and Rest-Activity Cycle in College and University Students Complaining of a Delayed Sleep Schedule: An Actigraphy Study

Ejemplares similares