Influence of the menstrual cycle on the sweating response measured by direct calorimetry in women exposed to warm environmental conditions
Abstract
The whole body sweating response was measured at rest in eight women during the follicular (F) and the luteal (L) phases of the menstrual cycle. Subjects were exposed for 30-min to neutral (N) environmental conditions [ambient temperature (Ta) 28 degrees C] and then for 90-min to warm (W) environmental conditions (Ta, 35 degrees C) in a direct calorimeter. At the end of the N exposure, tympanic temperature (Tty) was 0.18 (SEM 0.06) degrees C higher in the L than in the F phase (P less than 0.05), whereas mean skin temperature (Tsk) was unchanged. During W exposure, the time to the onset of sweating as well as the concomitant increase in body heat content were similar in both phases. At the onset of sweating, the tympanic threshold temperature (Tty,thresh) was higher in the L phase [37.18 (SEM 0.08) degrees C] than in the F phase [36.95 (SEM 0.07) degrees C; P less than 0.01]. The magnitude of the shift in Tty,thresh [0.23 (SEM 0.07) degrees C] was similar to the L-F difference in Tty observed at the end of the N exposure. The mean skin threshold temperature was not statistically different between the two phases. The slope of the relationship between sweating rate and Tty was similar in F and L. It was concluded that the internal set point temperature of resting women exposed to warm environmental conditions shifted to a higher value during the L phase compared to the F phase of the menstrual cycle; and that the magnitude of the shift corresponded to the difference in internal temperature observed in neutral environmental conditions between the two phases.
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During heat exposure, the higher core body temperature in the luteal phase is coupled with a higher core temperature threshold for heat loss effector function, including cutaneous vasodilation and sweating.
“During heat exposure, the higher core body temperature in the luteal phase is coupled with a higher core temperature threshold for heat loss effector function, including cutaneous vasodilation and sweating (Figure 4; 29,122-126).”
From Temperature regulation in women: Effects of the menstrual cycle (2020) · cites this paper as [122]
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References 19 · Cited by 27
- Authors
- Frascarolo, P., Schutz, Y., & J�quier, E.
- Affiliations
- University of Lausanne (CH)
- Venue
- European Journal of Applied Physiology and Occupational Physiology
- Published
- 1992
- Volume
- 64
- Issue
- 5
- Pages
- 449-454
- ISSN
- 0020-9376 (ISSN-L)
- 0301-5548
- 1439-6327
- OpenAlex
- W1996754538
- Cited by
- 27
- References
- 19
- Citations by year
- 2025: 1 · 2024: 2 · 2023: 3 · 2022: 1 · 2021: 1 · 2020: 1 · 2018: 1 · 2016: 1
- FWCI
- 0.22
- Type
- journal article
- Language
- en
- Open access
- closed
- Licence
- www.springer.com/tdm (tdm)
- Locations
- European Journal of Applied Physiology (publishedVersion)
- PubMed (publishedVersion)
- IRIS (submittedVersion)
- SERVAL (Université de Lausanne) (submittedVersion)
- Topics
- Health Sciences › Medicine › Physiology › Thermoregulation and physiological responses
- Health Sciences › Medicine › Complementary and alternative medicine › Cardiovascular and exercise physiology
- Physical Sciences › Engineering › Building and Construction › Building Energy and Comfort Optimization
- Keywords
- menstrual cycle, luteal phase, follicular phase, sweating, thermoregulation, tympanic temperature, skin temperature, body heat content, women
- MeSH terms
- Adult, Body Temperature Regulation, Calorimetry, Female, Follicular Phase, Hot Temperature, Humans, Luteal Phase, Menstrual Cycle, Skin Temperature, Sweating
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