ArticleJournal of applied physiology (Bethesda, Md. : 1985)2023
Fluid balance during physical work in the heat is not modified by the menstrual cycle when fluids are freely available.
Article in Journal of applied physiology (Bethesda, Md. : 1985), 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
6 citing papers in PubMed, 9 citations in OpenAlex.
- Fueling Women's Football: Evidence-Informed Practical Nutrition Strategies for Performance and Health.Sports medicine (Auckland, N.Z.) · 2026Review
- Fluid balance, kidney function, and acute kidney injury risk in healthy men and women during simulated work-related heat stress.Journal of applied physiology (Bethesda, Md. : 1985) · 2026Article
- Comparison of heat acclimation after once daily and thrice daily heat exposures in healthy adults.Physiological reports · 2026Article
- Sex differences in energy intake, sweat rate, and electrolyte loss among world-class archers during competition.Journal of the International Society of Sports Nutrition · 2025Article
- Menstrual cycle tracking in professional volleyball athletes.Frontiers in sports and active living · 2024Article
- Repeatability of Ad Libitum Water Intake during Repeated 1 h Walking/Jogging Exercise Sessions Conducted under Hot Ambient Conditions.Nutrients · 2023Article
Corrections and comments
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Authors and funding
10 authors at 4 institutions in 4 countries.
Funding
Abstract
We tested the hypothesis that women may be more at risk of becoming dehydrated during physical work in the heat in the early follicular phase (EF), compared with the late follicular (LF) and mid-luteal (ML) phases of the menstrual cycle when allowed free access to drink. Twelve healthy, eumenorrheic, unacclimated women (26 ± 5 yr) completed three trials (EF, LF, and ML phases) involving 4 h of exposure to 33.8 ± 0.8 °C, 54 ± 1% relative humidity. Each hour, participants walked on a treadmill for 30 min at a rate of metabolic heat production of 338 ± 9 W. Participants drank a cool, flavor-preferred non-caloric sport drink ad libitum. Nude body weight was measured pre- and post-exposure, and percent changes in body weight loss were interpreted as an index of changes in total body water. Total fluid intake and urine output were measured and sweat rate was estimated from changes in body mass corrected for fluid intake and urine output. Fluid intake was not different between phases (EF: 1,609 ± 919 mL; LF: 1,902 ± 799 mL; ML: 1,913 ± 671;
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.