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dc.contributor.authorGarrett, A.T.
dc.contributor.authorDodd, E.
dc.contributor.authorBiddlecombe, V.
dc.contributor.authorGleadall-Siddall, D.
dc.contributor.authorBurke, R.
dc.contributor.authorShaw, J.
dc.contributor.authorBray, J.
dc.contributor.authorJones, Huw S.
dc.contributor.authorAbt, G.
dc.contributor.authorGritt, J.
dc.date.accessioned2020-04-29T13:13:45Z
dc.date.accessioned2020-05-11T15:09:48Z
dc.date.available2020-04-29T13:13:45Z
dc.date.available2020-05-11T15:09:48Z
dc.date.issued2019-11
dc.identifier.citationGarrett AT, Dodd E, Biddlecombe V et al (2019) Effectiveness of short-term heat acclimation on intermittent sprint performance with moderately trained females controlling for menstrual cycle phase. Frontiers in Physiology. 10: 1458.en_US
dc.identifier.urihttp://hdl.handle.net/10454/17795
dc.descriptionYesen_US
dc.description.abstractIntroduction: Investigate the effectiveness of short-term heat acclimation (STHA), over 5-days (permissive dehydration), on an intermittent sprint exercise protocol (HST) with females. Controlling for menstrual cycle phase. Materials and Methods: Ten, moderately trained, females (Mean [SD]; age 22.6 [2.7] y; stature 165.3 [6.2] cm; body mass 61.5 [8.7] kg; VO˙ 2 peak 43.9 [8.6] mL·kg−1 ·min−1 ) participated. The HST (31.0◦C; 50%RH) was 9 × 5 min (45-min) of intermittent exercise, based on exercise intensities of female soccer players, using a motorized treadmill and Wattbike. Participants completed HST1 vs. HST2 as a control (C) trial. Followed by 90 min, STHA (no fluid intake), for five consecutive days in 39.5◦C; 60%RH, using controlled-hyperthermia (∼rectal temperature [Tre] 38.5◦C). The HST3 occurred within 1 week after STHA. The HST2 vs HST3 trials were in the luteal phase, using self-reported menstrual questionnaire and plasma 17β-estradiol. Results: Pre (HST2) vs post (HST3) STHA there was a reduction at 45-min in Tre by 0.20◦C (95%CI −0.30 to −0.10◦C; d = 0.77); Tsk (−0.50; −0.90 to −0.10◦C; d = 0.80); and Tb (−0.25; −0.35 to −0.15◦C; d = 0.92). Cardiac frequency reduced at 45-min (−8; −16 to −1 b·min−1 ; d = 1.11) and %PV increased (7.0; −0.4 to 14.5%: d = 1.27). Mean power output increased across all nine maximal sprints by 56W (−26 to 139W; d = 0.69; n = 9). There was limited difference (P > 0.05) for these measures in HST1 vs HST2 C trial. Discussion: Short-term heat acclimation (5-days) using controlled-hyperthermia, leads to physiological adaptation during intermittent exercise in the heat, in moderately trained females when controlling for menstrual cycle phase.en_US
dc.language.isoenen_US
dc.relation.isreferencedbyhttps://doi.org/10.3389/fphys.2019.01458en_US
dc.rights© 2019 Garrett, Dodd, Biddlecombe, Gleadall-Siddall, Burke, Shaw, Bray, Jones, Abt and Gritt. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.en_US
dc.subjectFemaleen_US
dc.subjectMenstrual cycleen_US
dc.subjectDehydrationen_US
dc.subjectFluid-regulationen_US
dc.subjectPlasma volumeen_US
dc.titleEffectiveness of short term heat acclimation on intermittent sprint performance with moderately trained females controlling for menstrual cycle phaseen_US
dc.status.refereedYesen_US
dc.date.Accepted2019-11-12
dc.date.application2019-11-29
dc.typeArticleen_US
dc.type.versionPublished versionen_US
dc.date.updated2020-04-29T12:13:45Z
refterms.dateFOA2020-05-11T15:10:24Z


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