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dc.contributor.authorVallverdú Ferrer, Montserrat
dc.contributor.authorRuiz Muñoz, Aroa
dc.contributor.authorRoca Rodríguez, Emma
dc.contributor.authorCaminal Magrans, Pere
dc.contributor.authorRodríguez Guisado, Ferran Agustin
dc.contributor.authorIrurtia Amigo, Alfredo
dc.contributor.authorPerera Lluna, Alexandre
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria de Sistemes, Automàtica i Informàtica Industrial
dc.identifier.citationVallverdu, M., Ruiz, A., Roca Rodríguez, Emma, Caminal, P., Rodríguez, F., Irurtia-Amigo, A., Perera, A. Assessment of heart rate variability during an ultra-endurance mountain trail race by multi-scale entropy analysis. "Entropy: international and interdisciplinary journal of entropy and information studies", 1 Desembre 2017, vol. 19, núm. 12.
dc.description.abstractThe aim of the study was to analyze heart rate variability (HRV) response to high-intensity exercise during a 35-km mountain trail race and to ascertain whether fitness level could influence autonomic nervous system (ANS) modulation. Time-domain, frequency-domain, and multi-scale entropy (MSE) indexes were calculated for eleven mountain-trail runners who completed the race. Many changes were observed, mostly related to exercise load and fatigue. These changes were characterized by increased mean values and standard deviations of the normal-to-normal intervals associated with sympathetic activity, and by decreased differences between successive intervals related to parasympathetic activity. Normalized low frequency (LF) power suggested that ANS modulation varied greatly during the race and between individuals. Normalized high frequency (HF) power, associated with parasympathetic activity, varied considerably over the race, and tended to decrease at the final stages, whereas changes in the LF/HF ratio corresponded to intervals with varying exercise load. MSE indexes, related to system complexity, indicated the existence of many interactions between the heart and its neurological control mechanism. The time-domain, frequency-domain, and MSE indexes were also able to discriminate faster from slower runners, mainly in the more difficult and in the final stages of the race. These findings suggest the use of HRV analysis to study cardiac function mechanisms in endurance sports
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Spain
dc.subjectÀrees temàtiques de la UPC::Informàtica::Automàtica i control
dc.subject.lcshHeart beat
dc.subject.lcshAutonomic nervous system
dc.subject.lcshBiomedical engineering
dc.subject.otherheart rate variability
dc.subject.othermulti-scale entropy
dc.subject.othertime series analysis
dc.titleAssessment of heart rate variability during an ultra-endurance mountain trail race by multi-scale entropy analysis
dc.subject.lemacCor -- Batecs
dc.subject.lemacSistema nerviós autònom
dc.subject.lemacEnginyeria biomèdica
dc.contributor.groupUniversitat Politècnica de Catalunya. SISBIO - Senyals i Sistemes Biomèdics
dc.description.peerreviewedPeer Reviewed
dc.rights.accessOpen Access
dc.description.versionPostprint (author's final draft)
local.citation.authorVallverdu, M.; Ruiz, A.; Roca Rodríguez, Emma; Caminal, P.; Rodríguez, F.; Irurtia-Amigo, A.; Perera, A.
local.citation.publicationNameEntropy: international and interdisciplinary journal of entropy and information studies

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