Night work, season and alertness as occupational safety hazards in the Arctic: protocol for the Noralert observational crossover study among Norwegian process operators
Introduction The objective of this study is to determine the effects of night work, Arctic seasonal factors and cold working environments on human functions relevant to safety. The study aims to quantify the contribution of (1) several consecutive night shifts, (2) seasonal variation on sleepiness,...
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ftdoajarticles:oai:doaj.org/article:9bd512ed184a492ea708e20ce931ad27 2023-12-10T09:45:32+01:00 Night work, season and alertness as occupational safety hazards in the Arctic: protocol for the Noralert observational crossover study among Norwegian process operators Kristian Bernhard Nilsen Dagfinn Matre Mikael Sallinen Andrew J K Phillips Line Victoria Moen Fred Haugen 2023-10-01T00:00:00Z https://doi.org/10.1136/bmjopen-2023-075107 https://doaj.org/article/9bd512ed184a492ea708e20ce931ad27 EN eng BMJ Publishing Group https://bmjopen.bmj.com/content/13/10/e075107.full https://doaj.org/toc/2044-6055 doi:10.1136/bmjopen-2023-075107 2044-6055 https://doaj.org/article/9bd512ed184a492ea708e20ce931ad27 BMJ Open, Vol 13, Iss 10 (2023) Medicine R article 2023 ftdoajarticles https://doi.org/10.1136/bmjopen-2023-075107 2023-11-12T01:39:09Z Introduction The objective of this study is to determine the effects of night work, Arctic seasonal factors and cold working environments on human functions relevant to safety. The study aims to quantify the contribution of (1) several consecutive night shifts, (2) seasonal variation on sleepiness, alertness and circadian rhythm and (3) whether a computational model of sleep, circadian rhythms and cognitive performance can accurately predict the observed sleepiness and alertness.Methods and analysis In an observational crossover study of outdoor and indoor workers (n=120) on a three-shift schedule from an industrial plant in Norway (70 °N), measurements will be conducted during the summer and winter. Sleep duration and quality will be measured daily by smartphone questionnaire, aided by actigraphy and heart rate measurements. Sleepiness and alertness will be assessed at regular intervals by the Karolinska Sleepiness Scale and the psychomotor vigilance test, respectively. Saliva samples will assess melatonin levels, and a blood sample will measure circadian time. Thermal exposures and responses will be measured by sensors and by thermography.Ethics and dissemination All participants will give written informed consent to participate in the study, which will be conducted in accordance with the Declaration of Helsinki. The Norwegian Regional Committee for Medical Research Ethics South-East D waivered the need for ethics approval (reference 495816). Dissemination plans include academic and lay publications, and partnerships with national and regional policymakers. Article in Journal/Newspaper Arctic Directory of Open Access Journals: DOAJ Articles Arctic Norway BMJ Open 13 10 e075107 |
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Medicine R Kristian Bernhard Nilsen Dagfinn Matre Mikael Sallinen Andrew J K Phillips Line Victoria Moen Fred Haugen Night work, season and alertness as occupational safety hazards in the Arctic: protocol for the Noralert observational crossover study among Norwegian process operators |
topic_facet |
Medicine R |
description |
Introduction The objective of this study is to determine the effects of night work, Arctic seasonal factors and cold working environments on human functions relevant to safety. The study aims to quantify the contribution of (1) several consecutive night shifts, (2) seasonal variation on sleepiness, alertness and circadian rhythm and (3) whether a computational model of sleep, circadian rhythms and cognitive performance can accurately predict the observed sleepiness and alertness.Methods and analysis In an observational crossover study of outdoor and indoor workers (n=120) on a three-shift schedule from an industrial plant in Norway (70 °N), measurements will be conducted during the summer and winter. Sleep duration and quality will be measured daily by smartphone questionnaire, aided by actigraphy and heart rate measurements. Sleepiness and alertness will be assessed at regular intervals by the Karolinska Sleepiness Scale and the psychomotor vigilance test, respectively. Saliva samples will assess melatonin levels, and a blood sample will measure circadian time. Thermal exposures and responses will be measured by sensors and by thermography.Ethics and dissemination All participants will give written informed consent to participate in the study, which will be conducted in accordance with the Declaration of Helsinki. The Norwegian Regional Committee for Medical Research Ethics South-East D waivered the need for ethics approval (reference 495816). Dissemination plans include academic and lay publications, and partnerships with national and regional policymakers. |
format |
Article in Journal/Newspaper |
author |
Kristian Bernhard Nilsen Dagfinn Matre Mikael Sallinen Andrew J K Phillips Line Victoria Moen Fred Haugen |
author_facet |
Kristian Bernhard Nilsen Dagfinn Matre Mikael Sallinen Andrew J K Phillips Line Victoria Moen Fred Haugen |
author_sort |
Kristian Bernhard Nilsen |
title |
Night work, season and alertness as occupational safety hazards in the Arctic: protocol for the Noralert observational crossover study among Norwegian process operators |
title_short |
Night work, season and alertness as occupational safety hazards in the Arctic: protocol for the Noralert observational crossover study among Norwegian process operators |
title_full |
Night work, season and alertness as occupational safety hazards in the Arctic: protocol for the Noralert observational crossover study among Norwegian process operators |
title_fullStr |
Night work, season and alertness as occupational safety hazards in the Arctic: protocol for the Noralert observational crossover study among Norwegian process operators |
title_full_unstemmed |
Night work, season and alertness as occupational safety hazards in the Arctic: protocol for the Noralert observational crossover study among Norwegian process operators |
title_sort |
night work, season and alertness as occupational safety hazards in the arctic: protocol for the noralert observational crossover study among norwegian process operators |
publisher |
BMJ Publishing Group |
publishDate |
2023 |
url |
https://doi.org/10.1136/bmjopen-2023-075107 https://doaj.org/article/9bd512ed184a492ea708e20ce931ad27 |
geographic |
Arctic Norway |
geographic_facet |
Arctic Norway |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
BMJ Open, Vol 13, Iss 10 (2023) |
op_relation |
https://bmjopen.bmj.com/content/13/10/e075107.full https://doaj.org/toc/2044-6055 doi:10.1136/bmjopen-2023-075107 2044-6055 https://doaj.org/article/9bd512ed184a492ea708e20ce931ad27 |
op_doi |
https://doi.org/10.1136/bmjopen-2023-075107 |
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BMJ Open |
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13 |
container_issue |
10 |
container_start_page |
e075107 |
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