Intercostal Muscles Oxygenation and Breathing Pattern during Exercise in Competitive Marathon Runners

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dc.article.numbere1913
dc.catalogadorjca
dc.contributor.authorContreras Briceño, Felipe
dc.contributor.authorEspinosa Ramirez, Maximiliano
dc.contributor.authorMoya Gallardo, Eduardo
dc.contributor.authorFuentes Kloss, Rodrigo
dc.contributor.authorGabrielli, Luigi
dc.contributor.authorAraneda, Oscar F.
dc.contributor.authorViscor, Gines
dc.date.accessioned2024-04-15T08:00:14Z
dc.date.available2024-04-15T08:00:14Z
dc.date.issued2021
dc.description.abstractThe study aimed to evaluate the association between the changes in ventilatory variables (tidal volume (Vt), respiratory rate (RR) and lung ventilation (VE)) and deoxygenation of m.intescostales (Delta SmO2-m.intercostales) during a maximal incremental exercise in 19 male high-level competitive marathon runners. The ventilatory variables and oxygen consumption (VO2) were recorded breath-by-breath by exhaled gas analysis. A near-infrared spectroscopy device (MOXY (R)) located in the right-hemithorax allowed the recording of SmO2-m.intercostales. To explore changes in oxygen levels in muscles with high demand during exercise, a second MOXY (R) records SmO2-m.vastus laterallis. The triphasic model of exercise intensity was used for evaluating changes in SmO2 in both muscle groups. We found that ASmO(2)-m.intercostales correlated with VO2-peak (r = 0.65; p = 0.002) and the increase of VE (r = 0.78; p = 0.001), RR (r = 0.54; p = 0.001), but not Vt (p = 0.210). The interaction of factors (muscles x exercise-phases) in SmO2 expressed as an arbitrary unit (a.u) was significant (p = 0.005). At VT1 there was no difference (p = 0.177), but SmO2-m.intercostales was higher at VT2 (p < 0.001) and VO2-peak (p < 0.001). In high-level competitive marathon runners, the m.intercostales deoxygenation during incremental exercise is directly associated with the aerobic capacity and increased lung ventilation and respiratory rate, but not tidal volume. Moreover, it shows less deoxygenation than m.vastus laterallis at intensities above the aerobic ventilatory threshold.
dc.description.funderPontificia Universidad Catolica de Chile
dc.fechaingreso.objetodigital2024-03-08
dc.format.extent12 páginas
dc.fuente.origenWOS
dc.identifier.doi10.3390/ijerph18168287
dc.identifier.eissn1660-4601
dc.identifier.isbn978-1-119-52131-0
dc.identifier.issn1657-5997
dc.identifier.pubmedidMEDLINE:34444039
dc.identifier.scopusidSCOPUS_ID:85067041187
dc.identifier.urihttps://doi.org/10.3390/ijerph18168287
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/85061
dc.identifier.wosidWOS:000689103600001
dc.information.autorucEscuela de Medicina; Contreras Briceño, Felipe; 0000-0002-0674-7506; 1011730
dc.issue.numero16
dc.language.isoen
dc.nota.accesoContenido completo
dc.pagina.final15
dc.pagina.inicio11
dc.publisherWiley
dc.relation.ispartofJournal of Functional Foods
dc.revistaInternational Journal of Environmental Research and Public Health
dc.rightsacceso abierto
dc.subjectExercise
dc.subjectRunners
dc.subjectNear-infrared spectroscopy
dc.subjectRespiratory muscles
dc.subjectRespiration
dc.subject.ddc610
dc.subject.deweyMedicina y saludes_ES
dc.subject.ods05 Gender Equality
dc.subject.odspa05 Igualdad de género
dc.titleIntercostal Muscles Oxygenation and Breathing Pattern during Exercise in Competitive Marathon Runners
dc.typeartículo
dc.volumen18
sipa.codpersvinculados1011730
sipa.indexWOS
sipa.trazabilidadCarga WOS-SCOPUS;15-04-2024
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