Article Dans Une Revue Sustainable Cities and Society Année : 2025

Design and validation of an individualizable thermophysiological model to assess thermal, hydric and cardiovascular strain

Résumé

As heatwaves become more frequent, severe and longer, populations, especially urban population, become more vulnerable in part because of aging. Understanding heat-related symptoms and identifying vulnerability factors are crucial for risk prevention. While thermophysiological simulations enable the study of effects of heat stress at an individual scale, existing models lack the ability to simulate thermal, hydric and cardiovascular strain considering vulnerability factors. Therefore, this paper proposes an adaptation of the JOS-3 multi-segment multi-node model. The adadpted model, called aJOS-3, incorporates water balance, heart rate calculation, and the modeling of thermoregulatory limitations linked to dehydration and cadiovascular capacity. The adapted model is validated through comparison with simulation and experimental data from the literature. A sensitivity analysis is also carried out to address concerns regarding the individualization of the adapted model, aJOS-3. This model proves to be relevant for comparing different situations to assess heat strain responsible for heat-related symptoms, although estimating water intake and cardiac index remains a challenge for heat strain prediction.

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hal-05168371 , version 1 (17-07-2025)

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Célia Sondaz, Lucie Merlier, Claire Harpet, Frédéric Kuznik. Design and validation of an individualizable thermophysiological model to assess thermal, hydric and cardiovascular strain. Sustainable Cities and Society, 2025, 129, pp.106436. ⟨10.1016/j.scs.2025.106436⟩. ⟨hal-05168371⟩
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