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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ftpubmed:oai:pubmedcentral.nih.gov:10551971 2023-11-05T03:39:25+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 Matre, Dagfinn Sallinen, Mikael Phillips, Andrew J K Moen, Line Victoria Nilsen, Kristian Bernhard Haugen, Fred 2023-10-04 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10551971/ http://www.ncbi.nlm.nih.gov/pubmed/37793926 https://doi.org/10.1136/bmjopen-2023-075107 en eng BMJ Publishing Group http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10551971/ http://www.ncbi.nlm.nih.gov/pubmed/37793926 http://dx.doi.org/10.1136/bmjopen-2023-075107 © Author(s) (or their employer(s)) 2023. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ. https://creativecommons.org/licenses/by-nc/4.0/This is an open access article distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited, appropriate credit is given, any changes made indicated, and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/4.0/ (https://creativecommons.org/licenses/by-nc/4.0/) . BMJ Open Occupational and Environmental Medicine Text 2023 ftpubmed https://doi.org/10.1136/bmjopen-2023-075107 2023-10-08T01:15:20Z 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. Text Arctic PubMed Central (PMC) BMJ Open 13 10 e075107 |
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Occupational and Environmental Medicine |
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Occupational and Environmental Medicine Matre, Dagfinn Sallinen, Mikael Phillips, Andrew J K Moen, Line Victoria Nilsen, Kristian Bernhard Haugen, Fred 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 |
Occupational and Environmental Medicine |
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 |
Text |
author |
Matre, Dagfinn Sallinen, Mikael Phillips, Andrew J K Moen, Line Victoria Nilsen, Kristian Bernhard Haugen, Fred |
author_facet |
Matre, Dagfinn Sallinen, Mikael Phillips, Andrew J K Moen, Line Victoria Nilsen, Kristian Bernhard Haugen, Fred |
author_sort |
Matre, Dagfinn |
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 |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10551971/ http://www.ncbi.nlm.nih.gov/pubmed/37793926 https://doi.org/10.1136/bmjopen-2023-075107 |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
BMJ Open |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10551971/ http://www.ncbi.nlm.nih.gov/pubmed/37793926 http://dx.doi.org/10.1136/bmjopen-2023-075107 |
op_rights |
© Author(s) (or their employer(s)) 2023. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ. https://creativecommons.org/licenses/by-nc/4.0/This is an open access article distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited, appropriate credit is given, any changes made indicated, and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/4.0/ (https://creativecommons.org/licenses/by-nc/4.0/) . |
op_doi |
https://doi.org/10.1136/bmjopen-2023-075107 |
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BMJ Open |
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13 |
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10 |
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e075107 |
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