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Related Experiment Videos

Exertional heat stroke: a case series.

Y Epstein1, D S Moran, Y Shapiro

  • 1IDF Institute of Military Physiology, Sheba Medical Center, Tel-Hashomer, Israel. hlrinst@post.tau.ac.il

Medicine and Science in Sports and Exercise
|March 4, 1999
PubMed
Summary

Exertional heat stroke (EHS) often occurs in new soldiers during initial training, especially in warmer months. Strict adherence to military regulations appears crucial in preventing these dangerous heat illness cases.

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Area of Science:

  • Military Medicine
  • Environmental Physiology
  • Sports Medicine

Background:

  • Exertional heat stroke (EHS) is severe hyperthermia from exercise heat production exceeding dissipation.
  • EHS typically affects healthy, motivated individuals exercising in hot conditions for extended periods.

Purpose of the Study:

  • To investigate trends in Exertional Heat Stroke (EHS) incidence between 1988 and 1996.
  • To evaluate the relationship between EHS and military service duration, season, time of day, and exercise intensity.

Main Methods:

  • Retrospective analysis of 150 heat illness cases in male soldiers (age 20±3 years).
  • Diagnosis confirmation for 82 cases as Exertional Heat Stroke (EHS).

Main Results:

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  • Over 50% of EHS cases occurred within the first six months of service.
  • EHS cases peaked in summer but also occurred in spring, irrespective of time of day or heat load.
  • Significant EHS incidence during short activities and early stages of exercise (first 2 hours).

    • Conclusions:

    • Exertional Heat Stroke (EHS) incidence is strongly linked to the early phase of military service.
    • Non-compliance with military regulations appears to be a primary factor in EHS occurrences.