Evaluating the Effect of Heat Stress on Firefighters

Details

• Personal Author:
  Christianson J ; Davis LS ; James K ; Kincer G ; Mani A
• Description:
  Purpose:interdisciplinary study was designed to test emerging monitoring technology to detect adverse effects of heat stress on firefighters cardiovascular, neuromuscular, and cognitive systems during live burn events. Background: Sudden cardiac death is a primary cause of on-duty firefighter deaths. Heat stress and over exertion impact cardiovascular, neuromuscular, and cognitive systems.-time feedback of physiological responses has the potential to allow incident commanders to remove firefighters from heat exposure and over exertion situations as they approach physiological limits, thus preventing on-duty injuries or fatalities. Design: All subjects signed informed consents as per the approved IRB protocol.collection process was designed around the firefighters' Live Burn firefighting trainings.trainings included 3 scenarios lasting approximately 10 to 20 minutes each followed by a rest period.and subjective measures were gathered prior to the trainings (baseline) and at pre-scenario and post-scenario events throughout the trainings. CBT and Polar HR data were gathered continuously throughout the trainings. Methods: Core body temperature (CBT) and heart rate (HR) were monitored continuously during three training scenarios using an FDA approved ingestible radio pill, Polar HR chest strap, and a CBT data recorder. The three scenarios included search and rescue, hose advancement, and backup. Rest measurements of blood pressure (BP), pulse, SpO2, tympanic temperature, height and weight were obtained. Pre- and post-scenario measurements of BP, pulse, SpO2, tympanic temperature, reaction times (RT), perceived exertion (RPE), perceived respiratory distress (RD), perceived thermal comfort (TC), postural sway, and height and weight were obtained. Results: Real-time continuous CBT and Polar HR data increased as the firefighters progressed through each scenario. Correlation coefficients were between 0.95 and 0.98 for RPE, RD, and TC scales, and HR and tympanic temperatures. The remaining associations were weak. The results support the validity of using real-time monitoring of firefighters physiological responses during live burn events and the potential for systems to identify and remove firefighters from harmful situations. Conclusion: We have examined the objectives of quantifying objective and subjective measures and of determining the association between these measures of heat stress and overexertion associated with Live Burn activities carried out by firefighters.Further data collection will be performed to determine if the results obtained so far will be sustained. [Description provided by NIOSH]
• Subjects:
  Cardiovascular Diseases Cardiovascular System Firefighters Heat Stress Disorders Hot Temperature Occupational Health Safety Temperature
• Keywords:
  Body Temperature Cardiac Arrest Fire Fighters Heat Stress Hyperthermia Monitoring Systems Physiological Response Thermal Effects
• Publisher:
  University of Cincinnati
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Abstract or Summary
• Place as Subject:
  Ohio ; OSHA Region 5
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  1
• NIOSHTIC Number:
  nn:20052528
• Citation:
  14th Annual Pilot Research Project Symposium, University of Cincinnati Education and Research Center, October 10-11, 2013, Cincinnati, Ohio. Cincinnati, OH: University of Cincinnati, 2013 Oct; :1
• Email:
  kincergl@mail.uc.edu
• Federal Fiscal Year:
  2014
• Performing Organization:
  University of Cincinnati
• Peer Reviewed:
  True
• Start Date:
  20050701
• Source Full Name:
  14th Annual Pilot Research Project Symposium, University of Cincinnati Education and Research Center, October 10-11, 2013, Cincinnati, Ohio
• End Date:
  20260630
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:846fdbd8d6d18aadd96fcd8e380ab7bb27be776bb37c41b1541f48532a65df3e90196dbb44b2e6c4863190f7699cd1c7cf512bba7ed8f543b0857c9182267269
• Download URL:
  https://stacks.cdc.gov/view/cdc/212041/cdc_212041_DS1.pdf
• File Type:
  [PDF - 69.79 KB ]