The impact of repeated bouts of shiftwork on rapid strength and reaction time in career firefighters

Gerstner, Gena R.; Mota, Jacob A.; Giuliani, Hayden K.; Weaver, Mark A.; Shea, Nicholas W.; Ryan, Eric D.

doi:10.1080/00140139.2021.2016997

Cited by 5 publications

(17 citation statements)

References 42 publications

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“…Seventeen of the included studies were published in Australia [41,43,44,49,50,60,61,68,69,73,75,76,[78][79][80][81][82], seven from the United States [42,46,51,52,54,70,71], six from Canada [47,48,56,57,66,83], two from Poland [62,67], Taiwan [64,93], and South Korea [58,63], and one each from Brazil [45], Finland [59], France [65], Iran [53], Italy [72], Japan [77], and Spain [74].…”

Section: Resultsmentioning

confidence: 99%

Occupation-Induced Fatigue and Impacts on Emergency First Responders: A Systematic Review

Marvin,

Schram,

Orr

et al. 2023

IJERPH

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Fatigue in emergency first responders (EFRs) is known to affect performance abilities and safety outcomes for both patients and EFRs. The primary aim of this review was to determine the main contributors to occupation-induced fatigue in EFRs and its subsequent impacts. Following the PRIMSA checklist, academic databases (Medline, Embase, CINAHL, and SPORTDiscus) were searched using key terms with results subjected to inclusion and exclusion criteria. Populations of interest were firefighters, paramedics, or emergency call centre personnel. Of the 5633 records identified, 43 studies, which reported on 186 unique measures from a total population of 6373 participants, informed the review. Synthesis revealed fatigue was caused by lack of sleep during the shift and consistent poor sleep quality which negatively impacted cognitive function, alertness, and physical and mental health while increasing safety-compromising behaviours and injuries. Both subjective and objective assessments of fatigue are necessary for effective risk management in EFRs. EFRs that are consistently fatigued are at a greater risk of poor physical and mental health, reduced cognitive function, and increased injuries. No studies reported on fatigue in emergency call centre personnel, highlighting a literature gap. Funding was provided by the Australian Capital Territory Emergency Services Agency. Preregistration was filed in OSF: osf.io/26f3s.

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Section: Resultsmentioning

confidence: 99%

Occupation-Induced Fatigue and Impacts on Emergency First Responders: A Systematic Review

Marvin,

Schram,

Orr

et al. 2023

IJERPH

View full text Add to dashboard Cite

show abstract

“…However, all the practitioners agreed that the lack of recovery and fatigue impacted the risk of sustaining a musculoskeletal exercise injury. In support of this assertion, Gerstner and colleagues demonstrated that firefighters' rate of force development (in 50 ms) decreased over several shift cycles [29], which may have been associated with neuromuscular fatigue and risk of slip, trip, or fall injuries.…”

Section: Discussionmentioning

confidence: 96%

Etiology of Exercise Injuries in Firefighters: A Healthcare Practitioners’ Perspective

Eastman,

Rous,

Langford

et al. 2023

Healthcare

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The purpose of this study was to query healthcare practitioners (HCPs) who treat firefighter injuries to identify risk factors and mechanisms associated with musculoskeletal injuries during exercise. A phenomenological design was utilized to understand the experiences of HCPs while treating firefighters’ musculoskeletal injuries due to exercise. Semi-structured interviews were conducted with 14 HCPs. Two interviews were pilot-tested with HCPs to ensure reliability and validity. Interviews were transcribed and uploaded to a qualitative analysis software program. Although the study inquired about injuries incurred by any exercise modality (e.g., endurance and resistance training), injuries induced during resistance training were prominent among HCPs as resistance training emerged as a primary exercise injury mechanism. HCPs indicated that the back and shoulder were prevalent anatomical exercise injury locations. Risk factors for exercise injuries included age, immobility, movement proficiency, and factors associated with fatigue. Exercise injury mechanisms included poor resistance training technique and overexertion. These findings could guide exercise program design, use of movement assessments, and the identification of other countermeasures to decrease the risk of resistance training exercise injuries among firefighters.

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“…The duty cycle also differs significantly; while career firefighters typically adhere to extended shifts such as 24 h on and 48 h off, volunteers step in as needed. 27 Moreover, career firefighters often serve alongside the same team during their shifts. Thus, examining whether perceptual or psychological responses to firefighting activities differ between career and volunteer firefighters becomes essential.…”

Section: Literature Reviewmentioning

confidence: 99%

Quantifying disparities in fire-related mortality of US career and volunteer firefighters: A 43-year database study

2023

Journal of Fire Sciences

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There is no consensus on the leading causes of occupational disparities in firefighter mortality risk and whether these disparities have changed over time. This article prioritizes fire-related risks associated with mortality among US career and volunteer firefighters to inform targeted prevention efforts. We collected records of 3724 firefighter fatalities from the database between 1979 and 2021. Grey relational analysis was adopted to reveal the interrelationships between occupational risks and mortality. Firefighter mortality differed by occupation; the primary fire-related causes changed over 43 years for both career and volunteer firefighters. Volunteer firefighters exhibited higher risks across multiple variables than their career counterparts. These variables include alarm response/return, sudden cardiac death, age exceeding 60, and years of service below 10 or surpassing 30. These findings quantified disparities in the temporal evolution and fire-related occupations with elevated risk factors for deaths between career and volunteer firefighters, highlighting the need for targeted interventions.

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The impact of repeated bouts of shiftwork on rapid strength and reaction time in career firefighters

Cited by 5 publications

References 42 publications

Occupation-Induced Fatigue and Impacts on Emergency First Responders: A Systematic Review

Occupation-Induced Fatigue and Impacts on Emergency First Responders: A Systematic Review

Etiology of Exercise Injuries in Firefighters: A Healthcare Practitioners’ Perspective

Quantifying disparities in fire-related mortality of US career and volunteer firefighters: A 43-year database study

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