Oxygen uptake kinetics during incremental- and decremental-ramp cycle ergometry

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dc.contributor.authorRossiter, Harry B.
dc.contributor.authorWard, Susan A.
dc.contributor.authorWhipp, Brian J.
dc.contributor.buuauthorÖzyener, Fadil
dc.contributor.departmentUludağ Üniversitesi/Tıp Fakültesi/Fizyoloji Anabilim Dalı.tr_TR
dc.contributor.orcid0000-0002-4606-6596tr_TR
dc.contributor.researcheridAAH-1641-2021tr_TR
dc.contributor.scopusid6506242143tr_TR
dc.date.accessioned2022-01-13T07:22:00Z
dc.date.available2022-01-13T07:22:00Z
dc.date.issued2011-09
dc.description.abstractThe pulmonary oxygen uptake (VO2) response to incremental-ramp cycle ergometry typically demonstrates lagged-linear first-order kinetics with a slope of similar to 10-11 ml.min(-1).W-1, both above and below the lactate threshold (theta(L)), i.e. there is no discernible VO2 slow component (or "excess" VO2) above theta(L). We were interested in determining whether a reverse ramp profile would yield the same response dynamics. Ten healthy males performed a maximum incremental -ramp (15-30 W.min(-1), depending on fitness). On another day, the work rate (WR) was increased abruptly to the incremental maximum and then decremented at the same rate of 15-30 W. min(-1) (step-decremental ramp). Five subjects also performed a sub-maximal ramp-decremental test from 90% of theta(L). VO2 was determined breath-by-breath from continuous monitoring of respired volumes (turbine) and gas concentrations (mass spectrometer). The incremental-ramp VO2-WR slope was 10.3 +/- 0.7 ml.min(-1).W-1, whereas that of the descending limb of the decremental ramp was 14.2 +/- 1.1 ml.min(-1).W-1 (p < 0.005). The sub-maximal decremental-ramp slope, however, was only 9.8 +/- 0.9 ml.min(-1).W-1: not significantly different from that of the incremental-ramp. This suggests that the VO2 response in the supra-theta(L) domain of incremental-ramp exercise manifest not actual, but pseudo, first-order kinetics.en_US
dc.identifier.citationÖzyener, F. vd. (2011). "Oxygen uptake kinetics during incremental- and decremental-ramp cycle ergometry". Journal of Sports Science and Medicine, 10(3), 584-589.en_US
dc.identifier.endpage589tr_TR
dc.identifier.issn1303-2968
dc.identifier.issue3tr_TR
dc.identifier.pubmed24150637tr_TR
dc.identifier.scopus2-s2.0-80051889188tr_TR
dc.identifier.startpage584tr_TR
dc.identifier.urihttps://pubmed.ncbi.nlm.nih.gov/24150637/
dc.identifier.urihttp://hdl.handle.net/11452/24063
dc.identifier.volume10tr_TR
dc.identifier.wos000294155400025tr_TR
dc.indexed.pubmedPubmeden_US
dc.indexed.scopusScopusen_US
dc.indexed.wosSCIEen_US
dc.language.isoenen_US
dc.publisherJournal Sport Science and Medicineen_US
dc.relation.collaborationYurt dışıtr_TR
dc.relation.journalJournal of Sports Science and Medicineen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergitr_TR
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectSport sciencesen_US
dc.subjectOxygen uptake-work rate gainen_US
dc.subjectIncremental-ramp exerciseen_US
dc.subjectDecremental-ramp exerciseen_US
dc.subjectSystem linearityen_US
dc.subjectSlow componenten_US
dc.subjectGas-exchangeen_US
dc.subjectHeavy exerciseen_US
dc.subjectMuscle-fibersen_US
dc.subjectLoad exerciseen_US
dc.subjectHumansen_US
dc.subjectFatigueen_US
dc.subjectTestsen_US
dc.subjectTransientsen_US
dc.subjectParametersen_US
dc.subject.scopusVanadium Dioxide; Ergometers; Deoxygenationen_US
dc.subject.wosSport sciencesen_US
dc.titleOxygen uptake kinetics during incremental- and decremental-ramp cycle ergometryen_US
dc.typeArticle
dc.wos.quartileQ3en_US

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