Heat tolerance in humans: Understanding the responder/non-responder phenomenon and its implications for balancing force protection with operational capacity building
Abstract
A recent study concluded that the severity of heat related symptoms in soldiers who completed a forced march was not predictably related to the elevation in body core temperature. The explanation for dissociation between core temperature and heat tolerance between individuals is currently unclear, partly because of limitations in the measurement of integrated physiological responses to exercise in the heat. The above finding arises alongside the concept of individualised profiling of physiological responses in human exercise science. Briefly, well conducted studies have suggested that, given exposure to a similar physiological stimulus, the degree of acute response, tolerance andadaptation that occurs will differ between individuals, and a proportion will be non-responders.We have previously demonstrated that vascular adaptation to exercise exhibits a classic responder/non-responder profile. This heterogeneity in adaptation has also been reported for exercise-based heat acclimation. Characterising and understanding the reasons for this variability are of compelling importance to understanding human performance.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Nov 09, 2020
- Source ID
- N629092112001
Entities
People
- Daniel J. Green
Organizations
- Office of Naval Research
- United States Navy
- University of Western Australia