Relevance of individual characteristics for human heat stress response is dependent on exercise intensity and climate type

@article{Havenith1998RelevanceOI,
  title={Relevance of individual characteristics for human heat stress response is dependent on exercise intensity and climate type},
  author={George Havenith and Joh. M. Coenen and L. A. Kistemaker and W. Larry Kenney},
  journal={European Journal of Applied Physiology and Occupational Physiology},
  year={1998},
  volume={77},
  pages={231-241}
}
Abstract Multiple heterogeneous groups of subjects (both sexes and a wide range of maximal oxygen uptake V˙O2max, body mass, body surface area (AD),% body fat, and AD/mass coefficient) exercised on a cycle ergometer at a relative (%V˙O2max, REL) or an absolute (60 W) exercise intensity in a cool (CO 21°C, 50% relative humidity), warm humid (WH 35°C, 80%) and a hot dry (HD 45°C, 20%) environment. Rectal temperature (Tre) responses were analysed for the influence of the individual's… 
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Individualized model of human thermoregulation for the simulation of heat stress response.
  • G. Havenith
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    Journal of applied physiology
  • 2001
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In conclusion, individualization of the model allows improved prediction of heat strain, although a substantial error remains.
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TLDR
Prescription of exercise under heat stress using power (W·kg−1 or %Powermax) has the strongest relationship with the rate of change in Trec with no additional requirement to correct for body composition within a normal range, and Practitioners should prescribe exercise intensity using relative power during isothermic HA training to increase Trec efficiently and maximize adaptation.
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TLDR
Understanding how individual factors impact responses to heat stress is necessary for the prediction of heat wave impacts on occupational health and work capacity.
Core Temperature and Sweating in Men and Women During a 15-km Race in Cool Conditions.
TLDR
WBSR was associated with heat production, irrespective of sex, during a self-paced 15-km running race in cool environmental conditions, and men had a higher ΔCBT than women.
Responses to mild cold stress are predicted by different individual characteristics in young and older subjects.
TLDR
It is suggested that the relative influence of individual characteristics changes with aging, as shown in the chart below.
Sex differences in response to exercise heat stress in the context of the military environment.
TLDR
More work is required to fully understand sex differences to exercise heat stress in a GCC context and there is often lower reported heat illness incidence in women, although the extent to which this is influenced by behavioural factors or historic differences in role allocation is unclear.
Explained variance in the thermoregulatory responses to exercise: the independent roles of biophysical and fitness/fatness-related factors.
TLDR
Biophysical parameters related to Hprod, Ereq, and body size explain 54-71% of the individual variability in ΔTre, WBSL, and LSRss, and only 1-4% of additional variance is explained by factors related to fitness or fatness.
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