Do E2 and P4 contribute to the explained variance in core temperature response for trained women during exertional heat stress when metabolic rates are very high?

Simple item page
dc.citation.issue10
dc.citation.volume122
dc.contributor.authorZheng H
dc.contributor.authorBadenhorst CE
dc.contributor.authorLei T-H
dc.contributor.authorChe Muhamed AM
dc.contributor.authorLiao Y-H
dc.contributor.authorFujii N
dc.contributor.authorKondo N
dc.contributor.authorMündel T
dc.coverage.spatialGermany
dc.date.accessioned2023-08-17T21:34:12Z
dc.date.accessioned2023-09-04T01:41:25Z
dc.date.available2022-07-07
dc.date.available2023-08-17T21:34:12Z
dc.date.available2023-09-04T01:41:25Z
dc.date.issued2022-10
dc.date.updated2023-08-17T21:20:32Z
dc.description© The Author(s) 2022en_US
dc.description.abstractPurpose Women remain underrepresented in the exercise thermoregulation literature despite their participation in leisure-time and occupational physical activity in heat-stressful environments continuing to increase. Here, we determined the relative contribution of the primary ovarian hormones (estrogen [E2] and progesterone [P4]) alongside other morphological (e.g., body mass), physiological (e.g., sweat rates), functional (e.g., aerobic fitness) and environmental (e.g., vapor pressure) factors in explaining the individual variation in core temperature responses for trained women working at very high metabolic rates, specifically peak core temperature (Tpeak) and work output (mean power output). Methods Thirty-six trained women (32 ± 9 year, 53 ± 9 ml·kg−1·min−1), distinguished by intra-participant (early follicular and mid-luteal phases) or inter-participant (ovulatory vs. anovulatory vs. oral contraceptive pill user) differences in their endogenous E2 and P4 concentrations, completed a self-paced 30-min cycling work trial in warm–dry (2.2 ± 0.2 kPa, 34.1 ± 0.2 °C, 41.4 ± 3.4% RH) and/or warm–humid (3.4 ± 0.1 kPa, 30.2 ± 1.2 °C, 79.8 ± 3.7% RH) conditions that yielded 115 separate trials. Stepwise linear regression was used to explain the variance of the dependent variables. Results Models were able to account for 60% of the variance in Tpeak (𝑅⎯⎯⎯⎯2: 41% core temperature at the start of work trial, 𝑅⎯⎯⎯⎯2: 15% power output, 𝑅⎯⎯⎯⎯2: 4% [E2]) and 44% of the variance in mean power output (𝑅⎯⎯⎯⎯2: 35% peak aerobic power, 𝑅⎯⎯⎯⎯2: 9% perceived exertion). Conclusion E2 contributes a small amount toward the core temperature response in trained women, whereby starting core temperature and peak aerobic power explain the greatest variance in Tpeak and work output, respectively.
dc.format.extent2201-2212
dc.identifier10.1007/s00421-022-04996-2
dc.identifierhttps://www.ncbi.nlm.nih.gov/pubmed/35796828
dc.identifier.citationZheng H, Badenhorst CE, Lei T-H, Che Muhamed AM, Liao Y-H, Fujii N, Kondo N, Mündel T. (2022). Do E2 and P4 contribute to the explained variance in core temperature response for trained women during exertional heat stress when metabolic rates are very high?. Eur J Appl Physiol. 122. 10. (pp. 2201-2212).
dc.identifier.doi10.1007/s00421-022-04996-2
dc.identifier.eissn1439-6327
dc.identifier.elements-typejournal-article
dc.identifier.harvestedMassey_Dark
dc.identifier.issn1439-6319
dc.identifier.urihttp://hdl.handle.net/10179/19967
dc.languageeng
dc.publisherSpringer Nature
dc.relation.isPartOfEur J Appl Physiol
dc.rightsCC BY 4.0en_US
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/en_US
dc.subjectBody temperature
dc.subjectEstrogen
dc.subjectExercise
dc.subjectFemales
dc.subjectPerformance
dc.subjectRegression
dc.subjectAdult
dc.subjectBody Temperature
dc.subjectBody Temperature Regulation
dc.subjectFemale
dc.subjectHeat Stress Disorders
dc.subjectHot Temperature
dc.subjectHumans
dc.subjectSweating
dc.subjectTemperature
dc.titleDo E2 and P4 contribute to the explained variance in core temperature response for trained women during exertional heat stress when metabolic rates are very high?
dc.typeJournal article
pubs.elements-id454632
pubs.organisational-groupOther
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
454632.pdf
Size:
760.14 KB
Format:
Adobe Portable Document Format
Description:
Download
Collections
Journal Articles