ArticleTemperature (Austin, Tex.)2025
Exercise-induced dehydration does not impair cognitive performance in naturally menstruating women.
Article in Temperature (Austin, Tex.), 2025. 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
Despite increased female workforce engagement, research into physiological responses to thermally challenging environments has primarily focused on males. This study examined the combined impact of exercise-induced elevated core temperature and progressive dehydration on cognitive performance in naturally menstruating females. It was hypothesized that progressive increases in dehydration, heat and associated physiological responses would detrimentally affect cognitive performance. Twelve recreationally trained, naturally menstruating participants completed two experimental conditions - dehydrated (DEHY), and hydrated (HYD) - during the mid-luteal phase of their menstrual cycle. Participants cycled in a controlled environment (40°C, 20% humidity) for three 45-minute bouts at progressively reducing work intensity. Cognitive performance was assessed using the Parametric Go/No-Go (PGNG), Corsi Block Tapping (CBT), and Classic Stroop tasks, selected to represent the three key domains of executive function - cognitive inhibition, working memory, and cognitive flexibility. In DEHY, no fluid was permitted; in HYD, fluid was administered based on body mass loss. Body mass loss and serum osmolality was significantly higher in DEHY (-3.57[0.99] kg; 299[6] mOsm·kg
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