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https://www.readbyqxmd.com/read/28326286/the-effect-of-practical-cooling-strategies-on-physiological-response-and-cognitive-function-during-simulated-firefighting-tasks
#1
Rasoul Hemmatjo, Majid Motamedzade, Mohsen Aliabadi, Omid Kalatpour, Maryam Farhadian
Background: Firefighters often perform multiple tasks during firefighting operations under unknown and unpredictable conditions in hot and hostile environments. Methods: In this interventional study each firefighters engaged in 4 conditions: namely (1) no cooling device; control (NC), (2) cooling gel (CG), (3) cool vest (CV), and (4) CG+CV. Cooling effects of the employed interventions were evaluated based on heart rate (HR), temporal temperature (TT), reaction time (RT), and the correct response (CR). Results: HR and TT values for use of CG+CV (147...
2017: Health Promotion Perspectives
https://www.readbyqxmd.com/read/28319714/occupational-exposure-of-firefighters-to-polycyclic-aromatic-hydrocarbons-in-non-fire-work-environments
#2
Marta Oliveira, Klara Slezakova, Adília Fernandes, João Paulo Teixeira, Cristina Delerue-Matos, Maria do Carmo Pereira, Simone Morais
This work aims to characterize personal exposure of firefighters to polycyclic aromatic hydrocarbons (PAHs) in non-fire work environments (fire stations), and assesses the respective risks. Eighteen PAHs (16 considered by USEPA as priority pollutants, dibenzo[a,l]pyrene and benzo[j]fluoranthene) were monitored in breathing zones of workers at five Portuguese fire stations during a normal shift. The obtained levels of PAHs fulfilled all existent occupational exposure limits as well as air quality guidelines with total concentrations (ΣPAHs) in range of 46...
March 16, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28303944/relationships-between-strength-and-endurance-parameters-and-air-depletion-rates-in-professional-firefighters
#3
Stephanie Windisch, Wolfgang Seiberl, Ansgar Schwirtz, Daniel Hahn
The aim of this study was to quantify the physical demands of a simulated firefighting circuit and to establish the relationship between job performance and endurance and strength fitness measurements. On four separate days 41 professional firefighters (39 ± 9 yr, 179.6 ± 2.3 cm, 84.4 ± 9.2 kg, BMI 26.1 ± 2.8 kg/m(2)) performed treadmill testing, fitness testing (strength, balance and flexibility) and a simulated firefighting exercise. The firefighting exercise included ladder climbing (20 m), treadmill walking (200 m), pulling a wire rope hoist (15 times) and crawling an orientation section (50 m)...
March 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28278005/the-effect-of-artificial-smoke-compound-on-physiological-responses-cognitive-functions-and-work-performance-during-firefighting-activities-in-a-smoke-diving-room-an-intervention-study
#4
Rasoul Hemmatjo, Majid Motamedzade, Mohsen Aliabadi, Omid Kalatpour, Maryam Farhadian
This study investigated the combined effect of firefighting operations and exposure to smoke on physiological responses, cognitive and physical performance among firefighters. Each firefighter was engaged in two experimental conditions: (1) without artificial smoke; control (NS) and (2) with artificial smoke (WS). The results of data analysis revealed that heart rate (HR) and body temperature (BT) increased significantly after the firefighting activities in the two conditions relative to baseline. In addition, reaction time (RT) and correct response (CR) decreased after the activity relative to baseline and there was a significant difference in RT and CR between the NS and WS conditions...
February 25, 2017: International Journal of Occupational Safety and Ergonomics: JOSE
https://www.readbyqxmd.com/read/28273379/the-amplification-of-common-somatic-symptoms-by-posttraumatic-stress-disorder-in-firefighters
#5
Josie S Milligan-Saville, Helen M Paterson, Emily L Harkness, Annabel M Marsh, Mark Dobson, Richard I Kemp, Richard A Bryant, Samuel B Harvey
Posttraumatic stress disorder (PTSD) in emergency service personnel and other trauma-exposed populations is known to be associated with a variety of physical health problems. However, little attention has been paid to the health of ageing emergency service personnel, who may be forced into early medical retirement because of a combination of these issues. Currently employed (N = 274) Australian firefighters completed a cross-sectional survey using validated, self-report measures of PTSD and somatic symptoms...
March 8, 2017: Journal of Traumatic Stress
https://www.readbyqxmd.com/read/28272268/firefighter-work-duration-influences-the-extent-of-acute-kidney-injury
#6
Zachary J Schlader, Christopher L Chapman, Suman Sarker, Lindsey Russo, Todd C Rideout, Mark D Parker, Blair D Johnson, David Hostler
PURPOSE: We tested the hypothesis that elevations in biomarkers of acute kidney injury are influenced by the magnitude of hyperthermia and dehydration elicited by two common firefighter work durations. METHODS: Twenty-nine healthy adults (10 females) wearing firefighter protective clothing completed two randomized trials where they walked at 4.8 kph, 5% grade in a 38°C, 50% RH environment. In the SHORT trial, subjects completed two 20 min exercise bouts. In the LONG trial, subjects completed three 20 min exercise bouts...
March 7, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28269028/changes-in-st-qt-and-rr-ecg-intervals-during-acute-stress-in-firefighters-a-pilot-study
#7
Joana S Paiva, Susana Rodrigues, Joao Paulo Silva Cunha
Firefighting is a stressful occupation. The monitoring of psychophysiological measures in those professionals can be a way to prevent and early detect cardiac diseases and other stress-related problems. The current study aimed to assess morphological changes in the ECG signal induced by acute stress. A laboratory protocol was conducted among 6 firefighters, including a laboratory stress-inducer task - the Trier Social Stress Task (TSST) - and a 2-choice reaction time task (CRTT) that was performed before (CRTT1) and after (CRTT2) the stress condition...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28245625/influences-on-dietary-choices-during-day-versus-night-shift-in-shift-workers-a-mixed-methods-study
#8
Emily K Bonnell, Catherine E Huggins, Chris T Huggins, Tracy A McCaffrey, Claire Palermo, Maxine P Bonham
Shift work is associated with diet-related chronic conditions such as obesity and cardiovascular disease. This study aimed to explore factors influencing food choice and dietary intake in shift workers. A fixed mixed method study design was undertaken on a convenience sample of firefighters who continually work a rotating roster. Six focus groups (n = 41) were conducted to establish factors affecting dietary intake whilst at work. Dietary intake was assessed using repeated 24 h dietary recalls (n = 19). Interviews were audio recorded, transcribed verbatim, and interpreted using thematic analysis...
February 26, 2017: Nutrients
https://www.readbyqxmd.com/read/28237021/correlates-of-team-effectiveness-an-exploratory-study-of-firefighter-s-operations-during-emergency-situations
#9
Elise Jouanne, Camilo Charron, Christine Chauvin, Gaël Morel
This paper examines elements contributing to the effectiveness of firefighting teams carrying out typical tasks. Fourteen firefighter crews were filmed during nineteen real operations and answered questionnaires relating to psychosocial dimensions. Results have shown that "enriched closed-loops" of communication, positive emotional interactions and a "gamma" type of adaptation are positively related to team effectiveness. Conversely, open and incomplete loops of communication, negative emotional interactions, "beta" and "alpha" types of adaptation are negatively related to team effectiveness...
May 2017: Applied Ergonomics
https://www.readbyqxmd.com/read/28229067/the-effect-of-world-trade-center-exposure-on-the-timing-of-diagnoses-of-obstructive-airway-disease-chronic-rhinosinusitis-and-gastroesophageal-reflux-disease
#10
Xiaoxue Liu, Jennifer Yip, Rachel Zeig-Owens, Jessica Weakley, Mayris P Webber, Theresa M Schwartz, David J Prezant, Michael D Weiden, Charles B Hall
OBJECTIVES: In a cohort of rescue/recovery workers exposed to the dust that resulted from the collapse of the World Trade Center (WTC), we assessed how a diagnosis of obstructive airways disease (OAD) affected the likelihood of a subsequent diagnosis of chronic rhinosinusitis (CRS) or gastroesophageal reflux disease (GERD). We also assessed whether OAD acted as a mediator of the association between exposure to the WTC rescue/recovery effort and CRS and GERD diagnoses. METHODS: In this prospective cohort study, we analyzed Fire Department of the City of New York physician diagnoses of OAD, CRS, and GERD that were first documented between September 11, 2001, and September 10, 2011, among 8,968 WTC-exposed firefighters...
2017: Frontiers in Public Health
https://www.readbyqxmd.com/read/28227241/changes-in-st-qt-and-rr-ecg-intervals-during-acute-stress-in-firefighters-a-pilot-study
#11
Joana S Paiva, Susana Rodrigues, Joao Paulo Silva Cunha, Joana S Paiva, Susana Rodrigues, Joao Paulo Silva Cunha, Susana Rodrigues, Joana S Paiva
Firefighting is a stressful occupation. The monitoring of psychophysiological measures in those professionals can be a way to prevent and early detect cardiac diseases and other stress-related problems. The current study aimed to assess morphological changes in the ECG signal induced by acute stress. A laboratory protocol was conducted among 6 firefighters, including a laboratory stress-inducer task - the Trier Social Stress Task (TSST) - and a 2-choice reaction time task (CRTT) that was performed before (CRTT1) and after (CRTT2) the stress condition...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28220679/the-lac-m%C3%A3-gantic-derailment-corporate-regulation-and-neoliberal-sovereignty
#12
David Tyler Dunford
On July 6, 2013, Montreal, Maine, and Atlantic railcar 5017 hauling 72 tanker cars of Bakken crude oil derailed over the town of Lac-Mégantic, Quebec. The town erupted in a fiery inferno as 5,560,000 liters of highly flammable Bakken crude oil exploded over the town, killing 47 people and contaminating 558,000 tons of soil and local waterways. While Montreal, Maine, and Atlantic Rail Chairman Edward Burkhardt initially blamed the derailment on the lone engineer and local firefighters, this study shows how Transport Canada and the rail industry undermined regulatory and safety measures for several years before the derailment...
February 2017: Canadian Review of Sociology, Revue Canadienne de Sociologie
https://www.readbyqxmd.com/read/28208688/the-impact-of-heat-exposure-and-sleep-restriction-on-firefighters-work-performance-and-physiology-during-simulated-wildfire-suppression
#13
Grace E Vincent, Brad Aisbett, Brianna Larsen, Nicola D Ridgers, Rod Snow, Sally A Ferguson
This study was designed to examine the effects of ambient heat on firefighters' physical task performance, and physiological and perceptual responses when sleep restricted during simulated wildfire conditions. Thirty firefighters were randomly allocated to the sleep restricted (n = 17, SR; 19 °C, 4-h sleep opportunity) or hot and sleep restricted (n = 13, HOT + SR; 33 °C, 4-h sleep opportunity) condition. Firefighters performed two days of simulated, intermittent, self-paced work circuits comprising six firefighting tasks...
February 12, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28196830/the-benefits-of-data-linkage-for-firefighter-injury-surveillance
#14
Shannon A Widman, Michael T LeVasseur, Loni P Tabb, Jennifer A Taylor
BACKGROUND: While survey data are available for national estimates of fire events and firefighter fatalities, data on firefighter injury at the national and local levels remain incomplete and unreliable. Data linkage provides a vehicle to maximise case detection and deepen injury description for the US fire service. METHODS: By linking departmental Human Resources records, despatch data, workers' compensation and first reports of injury, researchers were able to describe reported non-fatal injuries to 3063 uniformed members of the Philadelphia Fire Department (PFD), for the period of 2005 through 2013...
February 14, 2017: Injury Prevention: Journal of the International Society for Child and Adolescent Injury Prevention
https://www.readbyqxmd.com/read/28178594/the-effects-of-fluoride-based-fire-fighting-foams-on-soil-microbiota-activity-and-plant-growth-during-natural-attenuation-of-perfluorinated-compounds
#15
Renato Nallin Montagnolli, Paulo Renato Matos Lopes, Jaqueline Matos Cruz, Elis Marina Turini Claro, Gabriela Mercuri Quiterio, Ederio Dino Bidoia
The use of fluoride based foams increases the effectiveness of fire-fighting operations, but they are also accompanied by major drawbacks regarding environmental safety of perfluorinated compounds (PFCs). The main concern with PFCs release is due to their well-known persistence and bioaccumulative potential, as they have been detected in many environmental samples. There is a significant knowledge gap on PFC toxicity to plants, even though such data could be useful towards bioremediation procedures. It is consensus that a realistic assessment of fire-fighting foam toxicity should cover as many test organisms as possible, however, few studies combine the performance of ecotoxicological tests with a detailed study of microbial communities in soil contaminated with firefighting foams...
March 2017: Environmental Toxicology and Pharmacology
https://www.readbyqxmd.com/read/28157765/prevalence-of-metabolic-syndrome-and-related-factors-in-korean-career-firefighters-in-comparisons-with-other-occupational-groups
#16
Wongyu Lee, Jaehee Kim
OBJECTIVE: The aim of this study was to investigate the prevalence of metabolic syndrome (MS) and its relationships with socio-demographic and lifestyle-related factors in firefighters comparing it to general workers. METHODS: Data from 257 Korean men career firefighters and 1064 Korean men workers were analyzed. RESULTS: There was no significant difference in the prevalence of MS between firefighters (21.4%) and general workers (25.6%). We found that age and obesity were independent risk factors for MS in both firefighters and general workers...
February 2, 2017: Journal of Occupational and Environmental Medicine
https://www.readbyqxmd.com/read/28112562/determination-of-orientation-and-practice-requirements-when-using-an-obstacle-course-for-mobility-performance-assessment
#17
Thomas Karakolis, Brittany A Sinclair, Alison Kelly, Phil Terhaar, Linda L M Bossi
OBJECTIVE: Determine effect of orientation (introduction and familiarization) and practice (repeated performance) on human performance under various load conditions as assessed by an obstacle course. BACKGROUND: Obstacle courses are commonly used as screening tools by military, police, and firefighters or to assess human capabilities and the effect of wearing personal protective equipment (PPE) and other occupationally necessary equipment on mobility task performance...
January 1, 2017: Human Factors
https://www.readbyqxmd.com/read/28107715/metabolical-shifts-towards-alternative-btex-biodegradation-intermediates-induced-by-perfluorinated-compounds-in-firefighting-foams
#18
Renato Nallin Montagnolli, Paulo Renato Matos Lopes, Jaqueline Matos Cruz, Marina Turini Claro, Gabriela Mercuri Quiterio, Ederio Dino Bidoia
The type and concentration of perfluorinated compounds (PFCs) can induce different types of enzymes and promote alternate patterns of BTEX transformation. However, it is not known how the presence of active fluorocarbon-degrading microbial populations affects the transformation of BTEX. In addition to chemical analysis at the molecular level, our research approached the aqueous film forming fire-fighting foams (AFFF) and BTEX co-contamination at a large-scale with respirometers to quantify the total microbial metabolism of soil via CO2 output levels...
December 30, 2016: Chemosphere
https://www.readbyqxmd.com/read/28095831/a-follow-up-study-of-airway-symptoms-and-lung-function-among-residents-and-workers-5-5%C3%A2-years-after-an-oil-tank-explosion
#19
Jens-Tore Granslo, Magne Bråtveit, Bjørg Eli Hollund, Stein Håkon Låstad Lygre, Cecilie Svanes, Bente Elisabeth Moen
BACKGROUND: Assess if people who lived or worked in an area polluted after an oil tank explosion had persistent respiratory health impairment as compared to a non-exposed population 5.5 years after the event. METHODS: A follow-up study 5.5 years after the explosion, 330 persons aged 18-67 years, compared lung function, lung function decline and airway symptoms among exposed persons (residents <6 km from the accident site or working in the industrial harbour at the time of the explosion) with a non-exposed group (residence >20 km away)...
January 17, 2017: BMC Pulmonary Medicine
https://www.readbyqxmd.com/read/28092775/alcohol-use-and-suicidality-in-firefighters-associations-with-depressive-symptoms-and-posttraumatic-stress
#20
Colleen E Martin, Anka A Vujanovic, Daniel J Paulus, Brooke Bartlett, Matthew W Gallagher, Jana K Tran
Both suicidality and alcohol use disorders are significant public health concerns among firefighters, and alcohol use is associated with increased suicide risk. In addition, firefighters endorse high rates of symptoms of depression and posttraumatic stress disorder (PTSD). Thus, the current investigation examined associations between alcohol dependence and suicide risk among a large sample of firefighters. Specifically, this study examined the indirect effects of alcohol dependence on suicidality outcomes via both depression and posttraumatic stress, using structural equation modeling...
January 7, 2017: Comprehensive Psychiatry
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