Oxygen uptake kinetics and time to exhaustion in cycling and running: A comparison between trained and untrained subjects

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dc.contributor.authorCaputo, F. [UNESP]
dc.contributor.authorMello, M. T.
dc.contributor.authorDenadai, B. S. [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade Federal de São Paulo (UNIFESP)
dc.date.accessioned2014-05-27T11:20:56Z
dc.date.available2014-05-27T11:20:56Z
dc.date.issued2003-12-01
dc.description.abstractThe objective of the present study was to compare pulmonary gas exchange kinetics (VO 2 kinetics) and time to exhaustion (Tlim) between trained and untrained individuals during severe exercise performed on a cycle ergometer and treadmill. Eleven untrained males in running (UR) and cycling (UC), nine endurance cyclists (EC), and seven endurance runners (ER) were submitted to the following tests on separate days: (i) incremental test for determination of maximal oxygen uptake (VO 2max) and the intensity associated with the achievement of VO 2max (IVO 2max) on a mechanical braked cycle ergometer (EC and UC) and on a treadmill (ER and UR); (ii) all-out exercise bout performed at IVO 2max to determine the time to exhaustion at IVO 2max (Tlim) and the time constant of oxygen uptake kinetics (τ). The τ was significantly faster in trained group, both in cycling (EC = 28.2 ± 4.7 s; UC = 63.8 ± 25.0 s) and in running (ER = 28.5 ± 8.5 s; UR = 59.3 ± 12.0 s). Tlim of untrained was significantly lower in cycling (EC = 384.4 ± 66.6 s vs. UC; 311.1 ± 105.7 s) and higher in running (ER = 309.2 ± 176.6 s vs. UR = 439.8 ± 104.2 s). We conclude that the VO 2 kinetic response at the onset of severe exercise, carried out at the same relative intensity is sensitive to endurance training, irrespective of the exercise type. The endurance training seems to differently influence Tlim during exercise at IVO 2max in running and cycling. © 2003 Taylor & Francis Ltd.en
dc.description.affiliationHuman Performance Laboratory UNESP, Rio Claro
dc.description.affiliationDepartment of Psychobiology UNIFESP, São Paulo
dc.description.affiliationLab. de Avaliacao da Perf. Humana, UNESP. Av. 24 A, Rio Claro, SP CEP 13506 900
dc.description.affiliationUnespHuman Performance Laboratory UNESP, Rio Claro
dc.format.extent461-466
dc.identifierhttp://dx.doi.org/10.1080/13813450312331342337
dc.identifier.citationArchives of Physiology and Biochemistry, v. 111, n. 5, p. 461-466, 2003.
dc.identifier.doi10.1080/13813450312331342337
dc.identifier.issn1381-3455
dc.identifier.lattes1907479250833033
dc.identifier.scopus2-s2.0-17144429307
dc.identifier.urihttp://hdl.handle.net/11449/67488
dc.language.isoeng
dc.relation.ispartofArchives of Physiology and Biochemistry
dc.relation.ispartofjcr1.806
dc.relation.ispartofsjr0,626
dc.rights.accessRightsAcesso restrito
dc.sourceScopus
dc.subjectAerobic training
dc.subjectCycling
dc.subjectMaximal aerobic exercise
dc.subjectOxygen uptake kinetics
dc.subjectRunning
dc.subjectoxygen
dc.subjectathlete
dc.subjectbicycle ergometer
dc.subjectcycling
dc.subjectexercise
dc.subjectexhaustion
dc.subjecthuman
dc.subjecthuman experiment
dc.subjectkinetics
dc.subjectlung gas exchange
dc.subjectmale
dc.subjectnormal human
dc.subjectoxygen consumption
dc.subjectphysical stress
dc.subjectrunning
dc.subjecttraining
dc.subjecttreadmill
dc.subjectAdaptation, Physiological
dc.subjectAdult
dc.subjectBicycling
dc.subjectExertion
dc.subjectHumans
dc.subjectKinetics
dc.subjectMale
dc.subjectOxygen Consumption
dc.subjectPhysical Endurance
dc.subjectPhysical Fitness
dc.subjectTime Factors
dc.titleOxygen uptake kinetics and time to exhaustion in cycling and running: A comparison between trained and untrained subjectsen
dc.typeArtigo
dcterms.licensehttp://journalauthors.tandf.co.uk/permissions/reusingOwnWork.asp
unesp.author.lattes1907479250833033[3]
unesp.author.orcid0000-0003-0775-1889[3]
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Biociências, Rio Claropt

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