Exertional heat illness incidence and on-site medical team preparedness in warm weather

To investigate the influence of estimated wet bulb globe temperature (WBGT) and the International Institute of Race Medicine (IIRM) activity modification guidelines on the incidence of exertional heat stroke (EHS) and heat exhaustion (HEx) and the ability of an on-site medical team to treat those af...

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Bibliographic Details
Published in:International journal of biometeorology 2018-07, Vol.62 (7), p.1147-1153
Main Authors: Hosokawa, Yuri, Adams, William M., Belval, Luke N., Davis, Robert J., Huggins, Robert A., Jardine, John F., Katch, Rachel K., Stearns, Rebecca L., Casa, Douglas J.
Format: Article
Language:English
Subjects:
Animal Physiology
Atmospheric models
Biological and Medical Physics
Biophysics
Climatology
Cold water
Earth and Environmental Science
Environment
Environmental Health
Exhaustion
Guidelines
Health services
Heat
Heat stroke
Incidence
Medical records
Medical treatment
Meteorology
Onsite
Original Paper
Patients
Plant Physiology
Regression analysis
Risk reduction
Tubs
Variance analysis
Water immersion
Weather
Weather stations
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Summary:To investigate the influence of estimated wet bulb globe temperature (WBGT) and the International Institute of Race Medicine (IIRM) activity modification guidelines on the incidence of exertional heat stroke (EHS) and heat exhaustion (HEx) and the ability of an on-site medical team to treat those afflicted. Medical records of EHS and HEx patients over a 17-year period from the New Balance Falmouth Road Race were examined. Climatologic data from nearby weather stations were obtained to calculate WBGT with the Australian Bureau of Meteorology (WBGT A ) and Liljegren (WBGT L ) models. Incidence rate (IR) of EHS, HEx, and combined total of EHS and HEx (COM) were calculated, and linear regression analyses were performed to assess the relationship between IR and WBGT A or WBGT L . One-way ANOVA was performed to compare differences in EHS, HEx, and COM incidence to four alert levels in the IIRM guidelines. Incidence of EHS, HEx, and COM was 2.12, 0.98, and 3.10 cases per 1000 finishers. WBGT A explained 48, 4, and 46% of the variance in EHS, HEx, and COM IR; WBGT L explained 63, 13, and 69% of the variance in EHS, HEx, and COM IR. Main effect of WBGT A and WBGT L on the alert levels were observed in EHS and COM IR ( p  
ISSN:0020-7128
1432-1254
DOI:10.1007/s00484-018-1517-3