Effect of exercise duration on pro-oxidants and pH in exhaled breath condensate in humans

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dc.contributor.authorTuesta Roa, Marcelo
dc.contributor.authorAlvear, M.
dc.contributor.authorCarbonell, T.
dc.contributor.authorGarcía B., Cristián
dc.contributor.authorGuzman-Venegas, R.
dc.contributor.authorAraneda, O. F.
dc.date.accessioned2020-01-12T02:22:29Z
dc.date.available2020-01-12T02:22:29Z
dc.date.issued2016
dc.description.abstractExercise promotes pulmonary oxidative imbalance. In this regard, some evidence has been obtained from the study of exhaled breath condensate (EBC) during urban races, in which the factors involved in the occurrence of this process are still not characterized. In this paper, under laboratory conditions, both the role of time of exercise on the generation of pro-oxidants (H2O2, NO2 (-)) and pH have been assessed in EBC of 16 under-trained subjects who completed three tests of cycloergometric exercise at low intensity (30 % of VO2 max) with a duration of 10, 30, and 90 min. Samples were obtained as follows: immediately before and at 80 min post exertion in each test. In the 90-min test, an increase in H2O2, NO2 (-) concentration in EBC at 80 min post exertion with no changes in the pH was observed. Total O-2 consumption and total ventilation weakly correlated with the changes in H2O2 and NO2 (-). In conclusion, the concentration of pro-oxidants in the EBC depends on the duration of the exercise when it is performed at low intensity under laboratory conditions.
dc.format.extent7 páginas
dc.fuente.origenFacultad de Medicina
dc.identifier.doi10.1007/s13105-016-0486-4
dc.identifier.issn1138-7548
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/27233
dc.issue.numeroNo. 2
dc.language.isoen
dc.nota.accesoContenido parcial
dc.pagina.final360
dc.pagina.inicio353
dc.revistaJournal of Physiology and Biochemistryes_ES
dc.rightsacceso restringido
dc.subjectExhaled breath condensatees_ES
dc.subjectPro-oxidantses_ES
dc.subjectLunges_ES
dc.subjectTime of exercisees_ES
dc.subjectOxidative stresses_ES
dc.subjectHealthy-subjectses_ES
dc.subjectReactive oxygenes_ES
dc.subjectLipid-peroxidationes_ES
dc.subjectModerate exercisees_ES
dc.subjectHydrogen-peroxidees_ES
dc.subjectSkeletal-musclees_ES
dc.subjectAssayes_ES
dc.subjectHyperventilationes_ES
dc.subjectSensitivityes_ES
dc.subjectBiochemistry & Molecular Biologyes_ES
dc.subjectPhysiologyes_ES
dc.subject.ddc610
dc.subject.deweyMedicina y saludes_ES
dc.titleEffect of exercise duration on pro-oxidants and pH in exhaled breath condensate in humanses_ES
dc.typeartículo
dc.volumenVol. 72
sipa.codpersvinculados1015160
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