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Please use this identifier to cite or link to this item: http://hdl.handle.net/1843/49080
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dc.creatorDan Gordonpt_BR
dc.creatorAdrian Scrutonpt_BR
dc.creatorRichard Barnespt_BR
dc.creatorJames Bakerpt_BR
dc.creatorLuciano Sales Pradopt_BR
dc.creatorViviane Merzbachpt_BR
dc.date.accessioned2023-01-23T14:00:36Z-
dc.date.available2023-01-23T14:00:36Z-
dc.date.issued2018-07-
dc.citation.volume38pt_BR
dc.citation.issue4pt_BR
dc.citation.spage689pt_BR
dc.citation.epage698pt_BR
dc.identifier.doihttps://doi.org/10.1111/cpf.12469pt_BR
dc.identifier.issn1475-097Xpt_BR
dc.identifier.urihttp://hdl.handle.net/1843/49080-
dc.description.resumoThe purpose of this study was to examine the effect of menstrual cycle phase on maximal oxygen uptake (V˙O2max) and associated cardiodynamic responses. A total of 16 active females volunteered of which n = 10 formed the non-oral contraceptive pill group (n-OCP), displaying a regular menstrual cycle of 28·4 ± 2·2 days (age 20·6 ± 1·6 years, height 169·9 ± 6·4 cm, mass 68·7 ± 7·9 kg) and n = 6 formed the oral contraceptive pill group (OCP) (monophasic pill) (age 21·7 years ± 2·16, height 168·1 cm ± 6·8 cm, mass 61·6 ± 6·8 kg). Each completed four incremental exercise tests for determination of V˙O2max, cardiac output, stroke volume and heart rate. Each test was completed according to the phases of the menstrual cycle as determined through salivary analysis of 17-β oestrodiol and progesterone. Non-significant differences were observed for V˙O2max across phases and between groups (P>0·05) with additional non-significant differences for Q˙max, HRmax and SVmax between groups. For ∆ V˙O2 during the final 60 s of the V˙O2max trial, significant differences were observed between OCP and n-OCP (P<0·05) with OCP showing zero V˙O2 plateaus in three pseudo-phases. Significant difference observed for a-vO2dif n-OCP between premenstruation and menstruation at 30-100% V˙O2max (P<0·05). Data suggest that the V˙O2 -plateau is effected by monophasic oral contraceptive pill, furthermore these data imply that V˙O2max test outcome is independent of menstrual cycle phase but caution should be applied when evaluating maximal oxygen uptake in females who are administered a monophasic oral contraceptive pill.pt_BR
dc.languageengpt_BR
dc.publisherUniversidade Federal de Minas Geraispt_BR
dc.publisher.countryBrasilpt_BR
dc.publisher.departmentEEF - DEPARTAMENTO DE EDUCAÇÃO FÍSICApt_BR
dc.publisher.initialsUFMGpt_BR
dc.relation.ispartofClinical Physiology and Functional Imagingpt_BR
dc.rightsAcesso Restritopt_BR
dc.subjectCardiac outputpt_BR
dc.subjectExercisept_BR
dc.subjectMaximal oxygen uptakept_BR
dc.subjectMenstruationpt_BR
dc.subjectStroke volumept_BR
dc.subject.otherDébito cardíacopt_BR
dc.subject.otherExercícios físicospt_BR
dc.subject.otherConsumo de oxigêniopt_BR
dc.subject.otherMenstruaçãopt_BR
dc.subject.otherAcidente vascular cerebralpt_BR
dc.titleThe effects of menstrual cycle phase on the incidence of plateau at VO2max and associated cardiorespiratory dynamicspt_BR
dc.typeArtigo de Periódicopt_BR
dc.url.externahttps://onlinelibrary.wiley.com/doi/10.1111/cpf.12469pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-3161-8984pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0001-7554-1926pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-2739-9176pt_BR
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