ArticleJournal of exercise science and fitness2026
Influence of habitual physical activity on cognitive performance of healthy young adults after passive heat exposure.
Article in Journal of exercise science and fitness, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Objective: Regular physical activity is positively associated with enhanced cognitive performance, whereas excessive heat stress may negatively impact cognition. The role of habitual physical activity on cognitive function under heat stress is unclear. Thus, we investigated the influence of physical activity status on the cognitive performance of healthy individuals after acute passive heat exposure. Methods: Our study involved non-randomised quasi-experimental controlled trials where 28 participants (active: n = 13, 4 females, less-active: n = 15, 5 females) underwent 45-min hot water immersion (HWI). Participants immersed their lower limbs in 42 °C water in a seated position for 15 min before they wore a disposable raincoat and continued immersion for 30 min. Estimated core temperature via non-invasive CORE sensor, heart rate, ratings of thermal sensation and thermal comfort were monitored. Pre- and post-immersion, the participants performed Stroop test and Iowa gambling task (IGT) to assess selective attention, executive function and decision-making. Results: After HWI, both active and less-active participants attained hyperthermia (38.5 ± 0.4 °C and 38.3 ± 0.4 °C, respectively; Conclusion: When exposed to modest levels of heat strain (≤38.5 °C), both physically active and less-active groups did not show impairment in executive function and risk-taking behaviour.
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