The cumulative heat strain index - A novel approach to assess the physiological strain induced by exercise-heat stress

A. Frank, M. Belokopytov, Y. Shapiro, Y. Epstein

Research output: Contribution to journalArticlepeer-review

Abstract

The cumulative heat strain index (CHSI) is a new approach for assessing the total physiological strain experienced by subjects exposed to an exercise-heat stress. The index is based on inherent physiological logic that combines the thermoregulatory strain, which is described by the area under the hyperthermic curve, and the circulatory strain, which is characterized by heart-beat count. According to this model, the index reflects the dynamics of changes in the thermoregulatory and cardiovascular components and accounts for the complementary nature of the interaction between them. Mathematically, the index is calculated as follows.

Original languageEnglish
Pages (from-to)527-532
Number of pages6
JournalEuropean Journal of Applied Physiology
Volume84
Issue number6
DOIs
StatePublished - 2001
Externally publishedYes

Keywords

  • Heat strain index
  • Heat stress
  • Physiological strain

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