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Firefighter exercise

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https://www.readbyqxmd.com/read/28689475/comparisons-between-shikoro-type-helmet-with-no-hood-and-typical-fire-protective-helmets-with-hood-in-a-hot-and-humid-environment
#1
Yoon Jeong Baek, Dahee Jung, Su-Young Son, Joo-Young Lee
The purpose of this study was to evaluate physiological and subjective responses while wearing the Shikoro-type helmet for firefighters when compared to typical helmets. Eight firefighters conducted a 30-min exercise at a 5 km h(-1) in three helmet conditions at an air temperature of 32 °C with 70%RH. The results showed that no significant differences in rectal, mean skin temperature and physiological strain index among the three conditions were found during exercise and recovery. Skin temperatures on the cheek, ear and neck during exercise were significantly lower for the Shikoro-type condition (p < 0...
July 17, 2017: Ergonomics
https://www.readbyqxmd.com/read/28652921/comparison-of-facet-joint-degeneration-in-firefighters-and-hospital-office-workers
#2
Dong Hyun Kim, Yon Soo An, Hyung Doo Kim, Kyoung Sook Jeong, Yeon-Soon Ahn, Kun-Hyung Kim, Youngki Kim, Han-Soo Song, Chul-Gab Lee, Young-Jun Kwon, Jin-Ha Yoon
BACKGROUND: There are few published studies on the relationship between occupational lumbar load and facet joint degeneration (FJD). This cross-sectional study was conducted to evaluate the effect of physical lumbar load on FJD by comparing magnetic resonance imaging (MRI) findings of firefighters (FFs) and hospital office workers (HOWs). METHODS: We randomly sampled 341 male FFs and 80 male HOWs by age stratification. A questionnaire and clinical examination, including MRI of the lumbar spine (T12-S1), were conducted...
2017: Annals of Occupational and Environmental Medicine
https://www.readbyqxmd.com/read/28650351/changes-in-health-and-fitness-in-firefighter-recruits-an-observational-cohort-study
#3
David J Cornell, Stacy L Gnacinski, Barbara B Meyer, Kyle T Ebersole
PURPOSE: To observe longitudinal changes in health and fitness among firefighter recruits. METHODS: Body composition, aerobic capacity, muscular power, muscular strength, and muscular endurance measures were longitudinally collected among 27 male firefighter recruits (mean ± SD, age = 29.9 ± 4.1 yrs; height = 179.8 ± 4.6 cm; body mass = 87.2 ± 9.7 kg) at the beginning (W1) and end (W14) of their firefighter training academy, as well as at the end of their probationary period (W38)...
June 22, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28609218/lung-function-measures-following-simulated-wildland-firefighter-exposures
#4
Matthew D Ferguson, Erin O Semmens, Emily Weiler, Joe Domitrovich, Mary French, Christopher Migliaccio, Charles Palmer, Charles Dumke, Tony Ward
Across the world, biomass smoke is a major source of air pollution and is linked with a variety of adverse health effects. This is particularly true in the western US where wood smoke from wildland forest fires are a significant source of PM2.5. Wildland firefighters are impacted as they experience elevated PM2.5 concentrations over extended periods of time, often occurring during physical exertion. Various epidemiological studies have investigated wood smoke impacts on human health, including occupational field exposures experienced by wildland firefighters...
June 13, 2017: Journal of Occupational and Environmental Hygiene
https://www.readbyqxmd.com/read/28604019/occupational-stress-and-mental-health-symptoms-examining-the-moderating-effect-of-work-recovery-strategies-in-firefighters
#5
Gargi Sawhney, Kristen S Jennings, Thomas W Britt, Michael T Sliter
The goal of this research was to examine the moderating effect of work recovery strategies on the relationship between occupational stress experienced by firefighters and mental health symptoms. Work recovery strategies were identified through semistructured interviews with 20 firefighters and a literature search on recovery strategies. A total of 7 work recovery strategies emerged using the 2 methods: work-related talks, stress-related talks, time with coworkers/supervisor, exercise, recreational activities, relaxation, and mastery experiences...
June 12, 2017: Journal of Occupational Health Psychology
https://www.readbyqxmd.com/read/28540801/umbilical-temperature-correlation-with-core-and-skin-temperatures-at-rest-in-the-heat-and-during-physical-activity
#6
Raymond J Roberge, Jung-Hyun Kim, Patrick Yorio, Aitor Coca, Yongsuk Seo, Tyler Quinn, Ali Aljaroudi, Jeffrey B Powell
PURPOSE: to determine the correlation of umbilical temperatures (Tumb) with simultaneously recorded chest wall temperature (Tchest) and rectal temperature (Trectal) in adults during rest, heat exposure and exercise. METHODS: A total of 28 healthy men, wearing different types of clothing (athletic garb, a spandex full body heating garment, firefighter bunker gear) had average and peak umbilical, chest wall and rectal temperature measurements taken during sedentary temperature stabilisation stages, heat exposure periods and active exercise phases...
April 19, 2017: International Journal of Hyperthermia
https://www.readbyqxmd.com/read/28373523/fire-simulation-and-cardiovascular-health-in-firefighters
#7
RANDOMIZED CONTROLLED TRIAL
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
#8
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
#9
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 km·h, 5% grade in a 38°C, 50% RH environment. In the short trial, subjects completed two 20-min exercise bouts. In the long trial (LONG), subjects completed three 20-min exercise bouts...
August 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/27916763/demographic-and-occupational-determinants-of-the-work-ability-of-firemen
#10
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
#11
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
#12
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
#13
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
#14
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
#15
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
#16
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
#17
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...
May 2017: Ergonomics
https://www.readbyqxmd.com/read/27058482/measured-pulmonary-and-systemic-markers-of-inflammation-and-oxidative-stress-following-wildland-firefighter-simulations
#18
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
#19
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
#20
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
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