Comparison of estimated core body temperature measured with the BioHarness and rectal temperature under several heat stress conditions

Details

• Personal Author:
  Coca, Aitor ; DiLeo T ; Kim J-H- ; Powell JB ; Roberge RJ ; Seo Y
• Description:
  Purpose: 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. Methods: 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). Results: Overall, the mean Tco-est did not differ significantly from Tre across the four conditions. During exercise at low-moderate work rates under heat stress conditions, Tco-est was consistently higher than Tre at all-time points. Tco-est underestimated temperature compared to Tre at rest in heat stress conditions and at a low work rate under heat stress while wearing PPE. The mean differences between the two measurements ranged from -0.1+/-0.4 to 0.3+/-0.4 degrees C and Tco-est correlated well with HR (r = 0.795 - 0.849) and mean body temperature (r = 0.637 - 0.861). Conclusion: These results indicate that, the comparison of Tco-est to Tre may result in over- or under-estimation which could possibly lead to heat-related illness during monitoring in certain conditions. Modifications to the current algorithm should be considered to address such issues. [Description provided by NIOSH]
• Subjects:
  Cardiovascular System Emergency Responders Environmental Exposure Firefighters Hot Temperature Mental Health Occupational Health Personal Protective Equipment Risk Assessment Risk Factors Safety Stress, Psychological

  More +
• Keywords:
  Author Keywords: Heat Stress Body Temperature Emergency Responders Estimated Core Body Temperature Exercise Exposure Levels Fire Fighters Heart Rate Heat Heat Exposure Mental Processes Mental Stress Military Personnel Monitoring Systems Monitors Personal Protective Equipment Physical Reactions Physical Stress Physiological Effects Physiological Function Physiological Stress Physiology Rectal Temperature Risk Factors

  More +
• ISSN:
  1545-9624
• Document Type:
  Text
• Genre:
  Journal Article
• Place as Subject:
  OSHA Region 3 ; Pennsylvania
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  NPPTL - National Personal Protective Technology Laboratory
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Volume:
  13
• Issue:
  8
• NIOSHTIC Number:
  nn:20047680
• Citation:
  J Occup Environ Hyg 2016 Aug; 13(8):612-620
• Contact Point Address:
  Aitor Coca, PhD, National Personal Protective Technology Laboratory, 626 Cochrans Mill Road, Pittsburgh, PA 15236
• Email:
  esq6@cdc.gov
• Federal Fiscal Year:
  2016
• NORA Priority Area:
  Public Safety
• Peer Reviewed:
  True
• Source Full Name:
  Journal of Occupational and Environmental Hygiene
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:1858041411d7da2d53583f02a3627ba2239d74dcb9661601416a2d7393c3978cc86c311c0d5027e613b9d40fb3bab5363776f2b041ec33e242acd757049f388d
• Download URL:
  https://stacks.cdc.gov/view/cdc/202683/cdc_202683_DS1.pdf
• File Type:
  [PDF - 946.97 KB ]