Blood glucose responses in humans mirror lactate responses for individual anaerobic threshold and for lactate minimum in track tests

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dc.contributor.authorSimoes, H. G.
dc.contributor.authorCampbell, CSG
dc.contributor.authorKokubun, Eduardo [UNESP]
dc.contributor.authorDenadai, B. S.
dc.contributor.authorBaldissera, V
dc.contributor.institutionUniversidade Federal de São Carlos (UFSCar)
dc.contributor.institutionUMC
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T15:20:29Z
dc.date.available2014-05-20T15:20:29Z
dc.date.issued1999-06-01
dc.description.abstractThe equilibrium point between blood lactate production and removal (La-min(-)) and the individual anaerobic threshold (IAT) protocols have been used to evaluate exercise. During progressive exercise, blood lactate [La-](b), catecholamine and cortisol concentrations, show exponential increases at upper anaerobic threshold intensities. Since these hormones enhance blood glucose concentrations [Glc](b), this study investigated the [Glc] and [La-](b) responses during incremental tests and the possibility of considering the individual glucose threshold (IGT) and glucose minimum;(Glc(min)) in addition to IAT and La-min(-) in evaluating exercise. A group of 15 male endurance runners ran in four tests on the track 3000 m run (v(3km)); IAT and IGT- 8 x 800 m runs at velocities between 84% and 102% of v(3km); La-min(-) and Glc(min) - after lactic acidosis induced by a 500-m sprint, the subjects ran 8 x 800 m at intensities between 87% and 97% of v(3km); endurance test (ET)- 30 min at the velocity of IAT. Capillary blood (25 mu l) was collected for [La-](b) and [Glc](b) measurements. The TAT and IGT were determined by [La-](b) and [Glc](b) kinetics during the second test. The La-min(-) and Glc(min) were determined considering the lowest [La-] and [Glc](b) during the third test. No differences were observed (P < 0.05) and high correlations were obtained between the velocities at IAT [283 (SD 19) and IGT 281 (SD 21)m. min(-1); r = 0.096; P < 0.001] and between La,, [285 (SD 21)] and Glc(min) [287 (SD 20) m. min(-1) = 0.77; P < 0.05]. During ET, the [La-](b) reached 5.0 (SD 1.1) and 5.3 (SD 1.0) mmol 1(-1) at 20 and 30 min, respectively (P > 0.05). We concluded that for these subjects it was possible to evaluate the aerobic capacity by IGT and Glc(min), as well as by IAT and La-min(-).en
dc.description.affiliationUniv Fed Sao Carlos, Dept Physiol Sci, BR-08820390 São Paulo, Brazil
dc.description.affiliationUMC, Dept Phys Educ, Mogi Das Cruzes, SP, Brazil
dc.description.affiliationPaulista State Univ, UNESP, Dept Educ Phys, São Paulo, Brazil
dc.description.affiliationUnespPaulista State Univ, UNESP, Dept Educ Phys, São Paulo, Brazil
dc.format.extent34-40
dc.identifierhttp://dx.doi.org/10.1007/s004210050555
dc.identifier.citationEuropean Journal of Applied Physiology and Occupational Physiology. New York: Springer Verlag, v. 80, n. 1, p. 34-40, 1999.
dc.identifier.doi10.1007/s004210050555
dc.identifier.issn0301-5548
dc.identifier.lattes3650843918755682
dc.identifier.lattes1907479250833033
dc.identifier.orcid0000-0002-9404-3444
dc.identifier.urihttp://hdl.handle.net/11449/31769
dc.identifier.wosWOS:000080312900006
dc.language.isoeng
dc.publisherSpringer
dc.relation.ispartofEuropean Journal of Applied Physiology and Occupational Physiology
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectindividual anaerobic thresholdpt
dc.subjectlactate minimumpt
dc.subjectindividual glucose thresholdpt
dc.subjectglucose minimumpt
dc.subjectaerobic capacity evaluationpt
dc.titleBlood glucose responses in humans mirror lactate responses for individual anaerobic threshold and for lactate minimum in track testsen
dc.typeArtigo
dcterms.licensehttp://www.springer.com/open+access/authors+rights?SGWID=0-176704-12-683201-0
dcterms.rightsHolderSpringer
unesp.author.lattes3650843918755682
unesp.author.lattes1907479250833033
unesp.author.orcid0000-0002-9404-3444[3]
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Biociências, Rio Claropt

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