Mathematical model of human responses to open air and water immersion
Modeling human thermoregulatory responses
DOI:
https://doi.org/10.12922/jshp.v10i1.187Keywords:
physiology, thermophysiology, thermoregulation, clothing, modeling, extreme environment, diving, immersionAbstract
Mathematical models that describe human thermoregulatory responses provide valuable information that can be used to prevent thermal injuries (e.g., heat or cold related), for training or planning purposes, and for an array of simulation activites such as analyzing after actions assessments. This paper focuses on the structure and mathematical basis of a multi-comparement model specifically designed and validated for use in a wide range of conditions, to include hot and cold stress and immersion in both cold and warm water conditions, that includes methods for assessing responses with various clothing. The Health Risk Prediction model (HRP) uses inputs environmental conditions, clothing properties, individual characteristics, and activity rates to quantitatively generate predictions of body temperatures (skin, muscle, core temperatures, etc.) as well as physiological outcomes (skin blood flow, metabolism, cardiac output, shivering, etc.).
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