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Firefighter exercise

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https://www.readbyqxmd.com/read/28373523/fire-simulation-and-cardiovascular-health-in-firefighters
#1
Amanda L Hunter, Anoop S V Shah, Jeremy P Langrish, Jennifer B Raftis, Andrew J Lucking, Mairi Brittan, Sowmya Venkatasubramanian, Catherine L Stables, Dominik Stelzle, James Marshall, Richard Graveling, Andrew D Flapan, David E Newby, Nicholas L Mills
BACKGROUND: Rates of myocardial infarction in firefighters are increased during fire suppression duties, and are likely to reflect a combination of factors including extreme physical exertion and heat exposure. We assessed the effects of simulated fire suppression on measures of cardiovascular health in healthy firefighters. METHODS: In an open-label randomized crossover study, 19 healthy firefighters (age, 41±7 years; 16 males) performed a standardized training exercise in a fire simulation facility or light duties for 20 minutes...
April 4, 2017: Circulation
https://www.readbyqxmd.com/read/28303944/relationships-between-strength-and-endurance-parameters-and-air-depletion-rates-in-professional-firefighters
#2
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/28272268/firefighter-work-duration-influences-the-extent-of-acute-kidney-injury
#3
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/27916763/demographic-and-occupational-determinants-of-the-work-ability-of-firemen
#4
Marjan Firoozeh, Mahnaz Saremi, Amir Kavousi, Azam Maleki
OBJECTIVES: Firefighters tackle various stressors that affect their health and job performance; therefore, assessment of their work ability is necessary. This study aimed to investigate the demographic and occupational determinants of the work ability of firemen. METHODS: In this cross-sectional study, 375 firemen working in Tehran Fire Department were randomly selected. Demographic, occupational, and work ability index (WAI) questionnaires were applied as research tools...
January 24, 2017: Journal of Occupational Health
https://www.readbyqxmd.com/read/27733928/health-and-rescue-services-management-system-during-a-crisis-event
#5
Efthyvoulos Kyriacou, Iolie Nicolaidou, George Hadjichristofi, Stelios Kyprianou, Synesios Christou, Riana Constantinou
Τhe performance of rescuers and personnel handling major emergencies or crisis events can be significantly improved through continuous training and through technology support. The work done in order to create a system has been discussed which can support both resources and victims during a crisis or major emergency event. More specifically, the system supports real-time management of firefighter teams, rescue teams, health services, and victims during a major disaster. It can be deployed in an ad hoc manner in the disaster area, as a stand-alone infrastructure (using its own telecommunications and power)...
September 2016: Healthcare Technology Letters
https://www.readbyqxmd.com/read/27716864/exogenous-carbohydrate-reduces-cortisol-response-from-combined-mental-and-physical-stress
#6
RANDOMIZED CONTROLLED TRIAL
M J McAllister, H E Webb, D K Tidwell, J W Smith, B J Fountain, M W Schilling, R D Williams
Combined mental and physical stress is associated with exacerbated cortisol production which may increase risk for the progression of cardiovascular disease in individuals working in high-stress occupations (e.g., firefighters, military personnel, etc.). Carbohydrate (CHO) ingestion prior to physical stress may attenuate cortisol concentrations. This project was the first to investigate the effect of CHO ingestion on cortisol response from combined mental and physical stress. 16 men 21-30 years old were randomly assigned a 6...
December 2016: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/27693921/can-the-functional-movement-screen%C3%A2-be-used-to-capture-changes-in-spine-and-knee-motion-control-following-12-weeks-of-training
#7
RANDOMIZED CONTROLLED TRIAL
David M Frost, Tyson A C Beach, Troy L Campbell, Jack P Callaghan, Stuart M McGill
OBJECTIVE: To examine whether objective measures of spine and frontal plane knee motion exhibited during Functional Movement Screen™ (FMS) task performance changed following a movement-guided fitness (MOV) and conventional fitness (FIT) exercise intervention. DESIGN: Secondary analysis of a randomized controlled experiment. Before and after 12 weeks of exercise, participants' kinematics were quantified while performing the FMS and a series of general whole-body movement tasks...
January 2017: Physical Therapy in Sport
https://www.readbyqxmd.com/read/27647442/exercise-induced-heat-stress-disrupts-the-shear-dilatory-relationship
#8
Stephen J Ives, Wesley K Lefferts, Margret Wharton, Patricia C Fehling, Denise L Smith
What is the central question of this study? Although heat stress is known to increase cardiovascular strain, no study, to date, had explored the potential impact of exercise-induced heat stress on vascular function. What is the main finding and its importance? We found that acute exercise tended to reduce flow-mediated dilatation (FMD), owing in part to reduced reactive hyperaemia/shear stimulus; thus, when FMD is normalized to shear no postexercise deficit exists. Exercise-induced heat stress increased reactive hyperaemia, shear rate, coupled with a sustained FMD postexercise, suggests that exercise-induced heat stress increases the amount of shear stimulus to elicit a similar response, indicating reduced vascular responsiveness, or reserve, which might increase cardiovascular susceptibility...
December 1, 2016: Experimental Physiology
https://www.readbyqxmd.com/read/27584397/physical-fitness-and-heart-rate-during-exercise-testing-as-predictors-of-cardiac-autonomic-impairment-among-firefighters-2271-board-2-june-2-3-15-pm-5-15-pm
#9
Luiz Guilherme G Porto, Maria Korre, Steven Moffatt, Stefanos N Kales
No abstract text is available yet for this article.
May 2016: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/27442677/exercise-and-cancer-return-to-work-as-a-firefighter-with-ostomy-after-rectal-carcinoma-a-case-report
#10
Joachim Wiskemann, Kai Schommer, Dirk Jaeger, Friederike Scharhag-Rosenberger
BACKGROUND: Colorectal cancer survivors are deconditioned through anticancer therapy. Furthermore, about 10% of them have a permanent ostomy which is associated with weakened abdominal muscles and an increased risk of a hernia. This case study reports on how a firefighter with rectal carcinoma and ostomy was trained to regain operational fitness. METHODS: A 44-year-old firefighter (178 cm, 82 kg) with an adenocarcinoma of the rectum (diagnosed 24 months prior) had been treated with neoadjuvant radiochemotherapy and surgery...
July 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27403712/firefighter-exercise-protocols-conducted-in-an-environmental-chamber-developing-a-laboratory-based-simulated-firefighting-protocol
#11
Ipek Ensari, Robert W Motl, Rachel E Klaren, Bo Fernhall, Denise L Smith, Gavin P Horn
A standard exercise protocol that allows comparisons across various ergonomic studies would be of great value for researchers investigating the physical and physiological strains of firefighting and possible interventions for reducing the demands. We compared the pattern of cardiorespiratory changes from 21 firefighters during simulated firefighting activities using a newly developed firefighting activity station (FAS) and treadmill walking both performed within an identical laboratory setting. Data on cardiorespiratory parameters and core temperature were collected continuously using a portable metabolic unit and a wireless ingestible temperature probe...
July 12, 2016: Ergonomics
https://www.readbyqxmd.com/read/27058482/measured-pulmonary-and-systemic-markers-of-inflammation-and-oxidative-stress-following-wildland-firefighter-simulations
#12
Matthew D Ferguson, Erin O Semmens, Charles Dumke, John C Quindry, Tony J Ward
OBJECTIVE: A controlled human exposure study was conducted to investigate the impact of inhalational exposures to wood smoke PM2.5 on measured concentrations of airway and systemic inflammatory biomarkers. METHODS: Mimicking wildland firefighter activities, 10 participants were exposed to three doses of wood smoke PM2.5 (filtered-air, 250 μg/m, and 500 μg/m) while exercising on a treadmill. Exhaled breath condensate (EBC) and blood plasma samples were obtained pre-, immediately post-, and 1-hour postexposure...
April 2016: Journal of Occupational and Environmental Medicine
https://www.readbyqxmd.com/read/26954265/comparison-of-estimated-core-body-temperature-measured-with-the-bioharness-and-rectal-temperature-under-several-heat-stress-conditions
#13
Yongsuk Seo, Travis DiLeo, Jeffrey B Powell, Jung-Hyun Kim, Raymond J Roberge, Aitor Coca
Monitoring and measuring core body temperature is important to prevent or minimize physiological strain and cognitive dysfunction for workers such as first responders (e.g., firefighters) and military personnel. The purpose of this study is to compare estimated core body temperature (Tco-est), determined by heart rate (HR) data from a wearable chest strap physiology monitor, to standard rectal thermometry (Tre) under different conditions.  Tco-est and Tre measurements were obtained in thermoneutral and heat stress conditions (high temperature and relative humidity) during four different experiments including treadmill exercise, cycling exercise, passive heat stress, and treadmill exercise while wearing personal protective equipment (PPE)...
August 2016: Journal of Occupational and Environmental Hygiene
https://www.readbyqxmd.com/read/26929836/effects-of-low-dose-aspirin-therapy-on-thermoregulation-in-firefighters
#14
Serina J McEntire, Steven E Reis, Oscar E Suman, David Hostler
BACKGROUND: Heart attack is the most common cause of line-of-duty death in the fire service. Daily aspirin therapy is a preventative measure used to reduce the morbidity of heart attacks but may decrease the ability to dissipate heat by reducing skin blood flow. METHODS: In this double-blind, placebo-controlled, crossover study, firefighters were randomized to receive 14 days of therapy (81-mg aspirin or placebo) before performing treadmill exercise in thermal-protective clothing in a hot room [38...
September 2015: Safety and Health At Work
https://www.readbyqxmd.com/read/26851472/physical-exercise-and-burnout-facets-predict-injuries-in-a-population-based-sample-of-french-career-firefighters
#15
Jérôme Vaulerin, Fabienne d'Arripe-Longueville, Mélanie Emile, Serge S Colson
Although firefighting is known to engender a high rate of injury, few studies have examined the contribution of physical exercise, burnout and coping strategies to firefighting-related injuries. Data were collected from a population-based sample of 220 male firefighters. In a descriptive study, the nature and site of the injuries and the relationships among firefighter injuries, physical exercise, burnout and coping strategies were examined. Sprains were the most prevalent type of injury (98%), followed by tendinitis (40%) and muscle tears (30%)...
May 2016: Applied Ergonomics
https://www.readbyqxmd.com/read/26726952/evaluation-of-firefighter-exposure-to-wood-smoke-during-training-exercises-at-burn-houses
#16
Sujan Fernando, Lorraine Shaw, Don Shaw, Michael Gallea, Lori VandenEnden, Ron House, Dave K Verma, Philip Britz-McKibbin, Brian E McCarry
Smoke from wood-fueled fires is one of the most common hazards encountered by firefighters worldwide. Wood smoke is complex in nature and contains numerous compounds, including methoxyphenols (MPs) and polycyclic aromatic hydrocarbons (PAHs), some of which are carcinogenic. Chronic exposure to wood smoke can lead to adverse health outcomes, including respiratory infections, impaired lung function, cardiac infarctions, and cancers. At training exercises held in burn houses at four fire departments across Ontario, air samples, skin wipes, and urine specimens from a cohort of firefighters (n = 28) were collected prior to and after exposure...
February 2, 2016: Environmental Science & Technology
https://www.readbyqxmd.com/read/26680533/prevalence-of-risk-factors-for-coronary-artery-disease-in-pennsylvania-usa-firefighters
#17
Brian L Risavi, Jason Staszko
INTRODUCTION: Firefighting is a physically demanding profession. Heart disease remains the number one killer of firefighters. Many firefighters have multiple risk factors, putting them at risk for sudden cardiac events. The purpose of this study was to describe the prevalence of risk factors for heart disease in a convenience sample of Pennsylvania (USA) firefighters. METHODS: A convenience sample of 160 firefighters in western Pennsylvania had height, weight, waist circumference, blood pressure, and body mass index (BMI) assessed, and then were surveyed to measure their knowledge of cardiovascular risk factors...
February 2016: Prehospital and Disaster Medicine
https://www.readbyqxmd.com/read/26451779/accuracy-of-tympanic-temperature-measurement-in-firefighters-completing-a-simulated-structural-firefighting-task
#18
Toby Keene, Matt Brearley, Beth Bowen, Anthony Walker
INTRODUCTION: In the course of their duties, firefighters risk heat stroke and other medical conditions due to exertion in high-temperature environments. Infrared tympanic temperature measurement (TTym) is often used by Emergency Medical Services (EMS) to assess the core body temperature of firefighters. The accuracy of TTym in this setting has been called into question. Hypothesis/Problem This study aimed to examine the accuracy of TTym for core body temperature assessment at emergency firefighting events compared with gastrointestinal temperature measurement (TGI) as measured by ingestible thermometers...
October 2015: Prehospital and Disaster Medicine
https://www.readbyqxmd.com/read/26360190/analysis-of-foot-clearance-in-firefighters-during-ascent-and-descent-of%C3%A2-stairs
#19
Richard M Kesler, Gavin P Horn, Karl S Rosengren, Elizabeth T Hsiao-Wecksler
Slips, trips, and falls are a leading cause of injury to firefighters with many injuries occurring while traversing stairs, possibly exaggerated by acute fatigue from firefighting activities and/or asymmetric load carriage. This study examined the effects that fatigue, induced by simulated firefighting activities, and hose load carriage have on foot clearance while traversing stairs. Landing and passing foot clearances for each stair during ascent and descent of a short staircase were investigated. Clearances decreased significantly (p < 0...
January 2016: Applied Ergonomics
https://www.readbyqxmd.com/read/26225477/aviation-related-wildland-firefighter-fatalities-united-states-2000-2013
#20
Corey R Butler, Mary B O'Connor, Jennifer M Lincoln
Airplanes and helicopters are integral to the management and suppression of wildfires, often operating in high-risk, low-altitude environments. To update data on aviation-related wildland firefighting fatalities, identify risk factors, and make recommendations for improved safety, CDC's National Institute for Occupational Safety and Health (NIOSH) analyzed reports from multiple data sources for the period 2000-2013. Among 298 wildland firefighter fatalities identified during 2000-2013, 78 (26.2%) were aviation-related occupational fatalities that occurred during 41 separate events involving 42 aircraft...
July 31, 2015: MMWR. Morbidity and Mortality Weekly Report
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