Biological and psychological responses to two rapid shiftwork schedules

Ergonomics
G Lac, A Chamoux

Abstract

This study presents the biological responses to shiftwork in two groups of workers with different shiftwork rotas. Biological responses were studied by recording the heart rate and the changes in the circadian profile of salivary cortisol over 24 h (RIA assays). Various items were recorded through questionnaires aimed at determining self appreciation of sleep quantity, stress, health, satisfaction at work and in private lives. Thirty two male subjects aged from 23 to 56, working for the same company, having given their informed consent, took part in the study. The study was carried out under realistic conditions (at the work place) under the control of an occupational physician. Sixteen day-workers (8 am-6 pm) served as a reference group. Eight shiftworkers included in alternate schedules (morning M 4 am-12 am, evening E 12 am-8 pm, night N 8 pm-4 am) according to a system M, S, N 3/2, (3 work, 2 rest) and eight according to a system 7/5 (3M/2S/2N/5R, 2/3/2/5, 2/2/3/5) constituted the groups of shiftworkers respectively named 3/2 and 7/5. All subjects had comparable ages and BMIs. Shiftworkers expressed a higher stress level and frequency of health problems and a lower satisfaction at work than the control. Among the three grou...Continue Reading

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Citations

Apr 6, 2006·Cancer Causes & Control : CCC·Erhard Haus, Michael Smolensky
Aug 26, 2010·Ergonomics·Gregory D RoachDrew Dawson
Jul 5, 2011·Chronobiology International·Michael WirthJohn E Vena
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Mar 12, 2017·Nutrients·Brad AisbettSéverine Lamon
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Jun 6, 2012·Oncology Reports·Giulia Costanza LeonardiConcettina Fenga
Aug 21, 2018·Journal of Occupational Medicine and Toxicology·Jian LiPeter Angerer
Jan 19, 2020·International Journal of Environmental Research and Public Health·Emanuele CannizzaroFulvio Plescia
Jul 25, 2018·Work : a Journal of Prevention, Assessment, and Rehabilitation·Annick Parent-Lamarche, Alain Marchand

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