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dc.contributor.author Tze-Huan, L.
dc.contributor.author Stannard, S. R.
dc.contributor.author Perry, B. G.
dc.contributor.author Schlader, Z. J.
dc.contributor.author Cotter, J. D.
dc.contributor.author Mündel, T.
dc.date.accessioned 2019-11-25T18:11:54Z
dc.date.available 2019-11-25T18:11:54Z
dc.date.issued 2017-05-01
dc.identifier.citation Tze-Huan L, Stannard SR, Perry BG, Schlader ZJ, Cotter JD, Mündel T. Influence of menstrual phase and arid vs. humid heat stress on autonomic and behavioural thermoregulation during exercise in well-trained women. The Journal of Physiology 595: 2823-2837, 2017. en
dc.identifier.uri http://hdl.handle.net/2022/24783
dc.description.abstract We studied thermoregulatory responses of ten well‐trained eumenorrheic women exercising in dry and humid heat, across their menstrual cycle. They completed four trials, each of resting and cycling at fixed intensities (125 and 150 W), to assess autonomic regulation, then self‐paced intensity (30 min work trial), to assess behavioural regulation. Trials were in early‐follicular (EF) and mid‐luteal (ML) phases in dry (DRY) and humid (HUM) heat matched for wet bulb globe temperature (WBGT, 27°C). During rest and fixed‐intensity exercise, rectal temperature was ∼0.2°C higher in ML than EF (P < 0.01) independent of environment (P = 0.66). Mean skin temperature did not differ between menstrual phases (P ≥ 0.13) but was higher in DRY than HUM (P < 0.01). Local sweat rate and/or forearm blood flow differed as a function of menstrual phase and environment (interaction: P ≤ 0.01). Exercise performance did not differ between phases [EF: 257 (37), ML: 255 (43) kJ, P = 0.62], but was 7 (9)% higher in DRY than HUM [263 (39), 248 (40) kJ; P < 0.01] in conjunction with equivalent autonomic regulation and thermal strain but higher evaporative cooling [16 (6) W m2; P < 0.01]. In well‐trained women exercising in the heat: (1) menstrual phase did not affect performance, (2) humidity impaired performance due to reduced evaporative cooling despite matched WBGT and (3) behavioural responses nullified thermodynamic and autonomic differences associated with menstrual phase and dry vs. humid heat. en
dc.language.iso en en
dc.publisher The Journal of Physiology en
dc.relation.isversionof https://physoc.onlinelibrary.wiley.com/doi/full/10.1113/JP273176 en
dc.subject exercise en
dc.subject thermoregulation en
dc.subject women en
dc.title Influence of menstrual phase and arid vs. humid heat stress on autonomic and behavioural thermoregulation during exercise in well-trained women en
dc.type Article en
dc.identifier.doi 10.1113/JP273176


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