What question did this study set out to answer?

The aim was to evaluate the effects of low-energy cooling strategies on thermal and cardiovascular strain in older adults during extreme heat exposure.

May 14, 2026Physiology

Effect of low-energy cooling strategies on attenuating thermal and cardiovascular strain of older adults exposed to hot and humid heat with accompanying activities of daily living

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The aim was to evaluate the effects of low-energy cooling strategies on thermal and cardiovascular strain in older adults during extreme heat exposure.
Seventeen older adults were exposed to 3 hours of heating conditions mimicking a historical heat wave.
Interventions included skin wetting with water spray, electric fan use, and a combination of both during light cycling activities.
Data were analyzed using one-way repeated measures ANOVA with Dunnett tests for comparisons against control.
Core temperature increased by 1.08±0.46°C with fan use, significantly higher than control (p=0.03).
Skin temperature was lower with water spray and water spray + fan compared to control (p<0.001, p<0.01 respectively).
Whole-body sweat rate increased with fan use and was reduced with water spray compared to control (p<0.001).

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Implication

Randomized trial assesses cooling strategies on thermal strain in older adults, indicating alternative solutions for heat exposure.

Cite This Study

Cottle et al. (2026) studied this question.

synapsesocial.com/papers/6a0567d2a550a87e60a20053 https://doi.org/10.1152/physiol.2026.41.s1.2297945

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Effect of low-energy cooling strategies on attenuating thermal and cardiovascular strain of older adults exposed to hot and humid heat with accompanying activities of daily living

Key Points

Discussion

Implication

Cite This Study

Effect of low-energy cooling strategies on attenuating thermal and cardiovascular strain of older adults exposed to hot and humid heat with accompanying activities of daily living

Key Points

Discussion

Implication

Cite This Study

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