Inspiratory resistive loading after all-out exercise improves subsequent performance

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dc.contributor.authorChiappa, Gaspar R.
dc.contributor.authorRibeiro, Jorge P.
dc.contributor.authorAlves, Cristiano N.
dc.contributor.authorVieira, Paulo J. C.
dc.contributor.authorDubas, Joao [UNIFESP]
dc.contributor.authorQueiroga, Fernando [UNIFESP]
dc.contributor.authorBatista, Laura D. [UNIFESP]
dc.contributor.authorSilva, Antonio C. [UNIFESP]
dc.contributor.authorNeder, J. Alberto [UNIFESP]
dc.contributor.institutionHosp Clin Porto Alegre
dc.contributor.institutionUniv Fed Rio Grande do Sul
dc.contributor.institutionUniversidade Federal de São Paulo (UNIFESP)
dc.date.accessioned2016-01-24T13:52:29Z
dc.date.available2016-01-24T13:52:29Z
dc.date.issued2009-05-01
dc.description.abstractWe have previously shown that post-exercise inspiratory resistive loading (IRL) reduces blood lactate ([Lac (b) (-) ]). in this study, we tested the hypothesis that IRL during recovery could improve subsequent exercise performance. Eight healthy men underwent, on different days, two sequential 30-s, cycle ergometer Wingate tests. During the 10-min recovery period from test 1, subjects breathed freely or through an inspiratory resistance (15 cm H(2)O) with passive leg recovery. Arterialized [Lac (b) (-) ] values, perceptual scores (Borg), cardiac output by impedance cardiography (QT), and changes in the deoxygenation status of the M. vastus lateralis by near-infrared spectroscopy (Delta HHb), were recorded. [Lac (b) (-) ] was significantly reduced after 4 min of recovery with IRL (peak [Lac (b) (-) ] 12.5 +/- A 2.3 mmol l(-1) with free-breathing vs. 9.8 +/- A 1.5 mmol l(-1) with IRL). Effort perception was reduced during late recovery with IRL compared with free-breathing. Cardiac work was increased with IRL, since heart rate and QT were elevated during late recovery. Peripheral muscle reoxygenation, however, was significantly impaired with IRL, suggesting that post-exercise convective O(2) delivery to the lower limbs was reduced. Importantly, IRL had a dual effect on subsequent performance, i.e., improvement in peak and mean power, but increased fatigue index (P < 0.05). Our data demonstrate that IRL after a Wingate test reduces post-exercise effort perception and improves peak power on subsequent all-out maximal-intensity exercise.en
dc.description.affiliationHosp Clin Porto Alegre, Exercise Pathophysiol Res Lab, Div Cardiol, BR-90035007 Porto Alegre, RS, Brazil
dc.description.affiliationUniv Fed Rio Grande do Sul, Dept Med, Fac Med, Porto Alegre, RS, Brazil
dc.description.affiliationUniversidade Federal de São Paulo, Dept Med, Div Resp Dis, Pulm Funct & Clin Exercise Physiol Unit, São Paulo, Brazil
dc.description.affiliationUniversidade Federal de São Paulo, Dept Physiol, São Paulo, Brazil
dc.description.affiliationUnifespUniversidade Federal de São Paulo, Dept Med, Div Resp Dis, Pulm Funct & Clin Exercise Physiol Unit, São Paulo, Brazil
dc.description.affiliationUnifespUniversidade Federal de São Paulo, Dept Physiol, São Paulo, Brazil
dc.description.sourceWeb of Science
dc.format.extent297-303
dc.identifierhttp://dx.doi.org/10.1007/s00421-009-1022-9
dc.identifier.citationEuropean Journal of Applied Physiology. New York: Springer, v. 106, n. 2, p. 297-303, 2009.
dc.identifier.doi10.1007/s00421-009-1022-9
dc.identifier.issn1439-6319
dc.identifier.urihttp://repositorio.unifesp.br/handle/11600/31491
dc.identifier.wosWOS:000265694500015
dc.language.isoeng
dc.publisherSpringer
dc.relation.ispartofEuropean Journal of Applied Physiology
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.rights.licensehttp://www.springer.com/open+access/authors+rights?SGWID=0-176704-12-683201-0
dc.subjectRespiratory musclesen
dc.subjectWingate testen
dc.subjectHemodynamicsen
dc.subjectNear-infrared spectroscopyen
dc.subjectLactateen
dc.titleInspiratory resistive loading after all-out exercise improves subsequent performanceen
dc.typeinfo:eu-repo/semantics/article
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