ArticleAnnals of occupational and environmental medicine2014
Very Long (> 48 hours) Shifts and Cardiovascular Strain in Firefighters: a Theoretical Framework.
Article in Annals of occupational and environmental medicine, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 2 of them syntheses that pooled it.
What it found
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The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
14 citing papers in PubMed, 2 syntheses or guidelines pooled it.
- Adapting shift work schedules for sleep quality, sleep duration, and sleepiness in shift workers.The Cochrane database of systematic reviews · 2023Pooled it
- Non-accidental health impacts of wildfire smoke.International journal of environmental research and public health · 2014Pooled it
- Associations of Employment Factors With Cardiovascular Disease in a National Sample of US Firefighters: Findings From the National Health Interview Survey.Journal of occupational and environmental medicine · 2026Article
- The Cyclical Battle of Insomnia and Mental Health Impairment in Firefighters: A Narrative Review.Journal of clinical medicine · 2024Review
- Comparing actigraphy and diary to measure daily and average sleep in firefighters: a Bland-Altman analysis.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2024Article
- The Wildland Firefighter Exposure and Health Effect (WFFEHE) Study: Rationale, Design, and Methods of a Repeated-Measures Study.Annals of work exposures and health · 2022Article
- Mental Health of Canadian Firefighters: The Impact of Sleep.International journal of environmental research and public health · 2021Article
- Low testosterone and cardiometabolic risks in a real-world study of US male firefighters.Scientific reports · 2021Article
- Article
- Twenty-four-hour work shifts, increased job demands, and elevated blood pressure in professional firefighters.International archives of occupational and environmental health · 2016Article
- Ambulatory heart rate of professional taxi drivers while driving without their typical psychosocial work stressors: a pilot study.Annals of occupational and environmental medicine · 2016Article
- Factors related to heart rate variability among firefighters.Annals of occupational and environmental medicine · 2016Article
- Factors associated with health-related quality of life in Korean older workers.Annals of occupational and environmental medicine · 2015Article
- Effects of high occupational physical activity, aging, and exercise on heart rate variability among male workers.Annals of occupational and environmental medicine · 2015Article
Corrections and comments
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Authors and funding
8 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Shift work and overtime have been implicated as important work-related risk factors for cardiovascular disease (CVD). Many firefighters who contractually work on a 24-hr work schedule, often do overtime (additional 24-hr shifts) which can result in working multiple, consecutive 24-hr shifts. Very little research has been conducted on firefighters at work that examines the impact of performing consecutive 24-hr shifts on cardiovascular physiology. Also, there have been no standard field methods for assessing in firefighters the cardiovascular changes that result from 24-hr shifts, what we call "cardiovascular strain". The objective of this study, as the first step toward elucidating the role of very long (> 48 hrs) shifts in the development of CVD in firefighters, is to develop and describe a theoretical framework for studying cardiovascular strain in firefighters on very long shifts (i.e., > 2 consecutive 24-hr shifts). The developed theoretical framework was built on an extensive literature review, our recently completed studies with firefighters in Southern California, e-mail and discussions with several firefighters on their experiences of consecutive shifts, and our recently conducted feasibility study in a small group of firefighters of several ambulatory cardiovascular strain biomarkers (heart rate, heart rate variability, blood pressure, salivary cortisol, and salivary C-reactive protein). The theoretical framework developed in this study will facilitate future field studies on consecutive 24-hr shifts and cardiovascular health in firefighters. Also it will increase our understanding of the mechanisms by which shift work or long work hours can affect CVD, particularly through CVD biological risk factors, and thereby inform policy about sustainable work and rest schedules for firefighters.
Identifiers
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Registered trials
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