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dc.contributor.authorUrianstad, Tomas
dc.contributor.authorHamarsland, Håvard
dc.contributor.authorOdden, Ingvill
dc.contributor.authorLorentzen, Håvard Crantz
dc.contributor.authorHammarström, Jens Konrad Daniel
dc.contributor.authorMølmen, Knut Sindre
dc.contributor.authorRønnestad, Bent
dc.date.accessioned2025-03-03T13:10:43Z
dc.date.available2025-03-03T13:10:43Z
dc.date.created2024-10-25T11:23:07Z
dc.date.issued2024
dc.identifier.issn1746-1391
dc.identifier.urihttps://hdl.handle.net/11250/3181474
dc.description.abstractIt has been suggested that time spent at a high fraction of maximal oxygen consumption (%mathematical equationO2max) plays a decisive role for adaptations to interval training. However, previous studies examining how interval sessions should be designed to achieve a high %mathematical equationO2max have exclusively been performed in males. The present study compared the %mathematical equationO2max attained during three different 6 × 8 min interval protocols, in female (n = 11; mathematical equationO2max, 62.5 (6.4) mL · min−1·kg−1) and male (n = 8; mathematical equationO2max, 81.0 (5.2) mL · min−1·kg−1) cyclists. Mean power output during work intervals were identical across the three interval protocols, corresponding to the cyclist's 40 min maximal effort (PO40min): (1) 30 s intervals at 118% of PO40min interspersed with 15 s active recovery at 60% (30/15), (2) constant pace at 100% of PO40min (CON), and (3) altering between 60 s intervals at 110% and 60 s at 90% of PO40min (60/60). Additionally, the study explored whether the m. vastus lateralis characteristics of the cyclists (fiber type proportion, capillarization, and citrate synthase activity) were associated with the %mathematical equationO2max attained during the interval sessions. Overall, mean %mathematical equationO2max and time ≥90% of mathematical equationO2max were higher during 30/15 compared to CON (86.7 (10.1)% and 1123 (787) s versus 85.0 (10.4)% and 879 (779) s, respectively; both p ≤ 0.01) and 60/60 (85.6 (10.0)% and 917 (745) s, respectively; both p ≤ 0.05), while no difference was observed between 60/60 and CON (both p ≥ 0.36). During interval sessions, %mathematical equationO2max and time ≥90% of mathematical equationO2max did not differ between sexes. Skeletal muscle characteristics were not related to %mathematical equationO2max during interval sessions. In conclusion, well-trained cyclists demonstrate highest %mathematical equationO2max during 30/15, irrespective of sex and skeletal muscle characteristics.
dc.language.isoengen_US
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internasjonal*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/deed.no*
dc.titleThe higher oxygen consumption during multiple short intervals is sex-independent and not influenced by skeletal muscle characteristics in well-trained cyclistsen_US
dc.title.alternativeThe higher oxygen consumption during multiple short intervals is sex-independent and not influenced by skeletal muscle characteristics in well-trained cyclistsen_US
dc.typePeer revieweden_US
dc.typeJournal articleen_US
dc.description.versionpublishedVersion
dc.source.journalEuropean Journal of Sport Science (EJSS)en_US
dc.identifier.doi10.1002/ejsc.12214
dc.identifier.cristin2314733
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode2


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Attribution-NonCommercial-NoDerivatives 4.0 Internasjonal
Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivatives 4.0 Internasjonal