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dc.contributor.authorEkberg, Sofie
dc.contributor.authorMorseth, Bente
dc.contributor.authorLarsén, Karin B.
dc.contributor.authorWikström-Frisén, Lisbeth
dc.date.accessioned2023-12-21T09:23:39Z
dc.date.available2023-12-21T09:23:39Z
dc.date.issued2023-12-18
dc.description.abstractPurpose: The aim was to study if aerobic capacity varies during different phases of the menstrual cycle (MC) in endurance-trained female athletes. Methods: Ten endurance-trained eumenorrheic women performed a submaximal test followed by an incremental test until exhaustion three times during one MC, early follicular phase (EFP), late follicular phase (LFP), and midluteal phase (MLP). During the submaximal test, the respiratory exchange ratio (RER) and utilization of fat and carbohydrates were analyzed; and, during the incremental test, VO<sub>2peak</sub>, maximal heart rate, utilization of fat and carbohydrates, and RER were analyzed. Lactate levels were analyzed at rest, during the submaximal test, and after the incremental test. The anaerobic threshold was determined at RER = 1. Results: No significant differences (p < .05) between the MC phases were seen in a maximal heart rate or VO<sub>2peak</sub>. Similarly, VO<sub>2</sub>, heart rate, RER, fatty acid oxidation, and carbohydrate oxidation at 70, 80, 90, and 100% of VO<sub>2peak</sub> did not differ significantly between MC phases. There were no significant differences between these phases in resting lactate before the test or during the submaximal tests, though there was a significant difference in lactate concentration 3 minutes after the incremental test between the EFP and the LFP (p = .043). Conclusion: This study did not display variations in physiological parameters between EFP, LFP, and MLP, indicating similar aerobic capacity despite hormonal variations. This knowledge may be useful when planning for competition in aerobic events.en_US
dc.identifier.citationEkberg, Morseth B, Larsén, Wikström-Frisén. Does the Menstrual Cycle Influence Aerobic Capacity in Endurance-Trained Women?. Research Quarterly for Exercise and Sport. 2023en_US
dc.identifier.cristinIDFRIDAID 2216667
dc.identifier.doi10.1080/02701367.2023.2291473
dc.identifier.issn0270-1367
dc.identifier.issn2168-3824
dc.identifier.urihttps://hdl.handle.net/10037/32189
dc.language.isoengen_US
dc.publisherTaylor & Francisen_US
dc.relation.journalResearch Quarterly for Exercise and Sport
dc.rights.accessRightsopenAccessen_US
dc.rights.holderCopyright 2023 The Author(s)en_US
dc.rights.urihttps://creativecommons.org/licenses/by/4.0en_US
dc.rightsAttribution 4.0 International (CC BY 4.0)en_US
dc.titleDoes the Menstrual Cycle Influence Aerobic Capacity in Endurance-Trained Women?en_US
dc.type.versionpublishedVersionen_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


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Attribution 4.0 International (CC BY 4.0)
Except where otherwise noted, this item's license is described as Attribution 4.0 International (CC BY 4.0)