Please use this identifier to cite or link to this item: https://repositorio.usj.es/handle/123456789/1113

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dc.contributor.authorBascuas, Pablo Jesús-
dc.contributor.authorBataller-Cervero, Ana Vanessa-
dc.contributor.authorGutiérrez, Héctor-
dc.contributor.authorBerzosa Sánchez, César-
dc.date.accessioned2024-02-08T10:26:34Z-
dc.date.available2024-02-08T10:26:34Z-
dc.date.issued2021-05-
dc.identifier.citationBascuas PJ, Bataller-Cervero AV, Gutierrez H, Berzosa C. Modifications of viscoelastic properties and physiological parameters after performing uphill and downhill running trials. J Sports Med Phys Fitness. 2021 May;61(5):625-635. doi: 10.23736/S0022-4707.20.11131-9. Epub 2020 Nov 4en_US
dc.identifier.issn1827-1928en_US
dc.identifier.urihttps://repositorio.usj.es/handle/123456789/1113-
dc.description.abstractBACKGROUND: Trail running performance depends on many factors, including energy cost of running, biomechanical parameters and stiffness. The aim of this study was to examine the influence of different positive and negative slopes on metabolic cost, tight hemoglobin saturation, viscoelastic properties, and vertical peak impacts in physically active young runners. METHODS: Nine healthy male volunteers (26±5 years) performed two separate uphill and downhill sessions on an instrumented treadmill; both sessions were completed in a random order at a constant running speed with variable slopes from 0% to ±20%. Oxygen uptake (V̇O2), carbon dioxide production (V̇CO2), pulmonary ventilation (V̇E), respiratory exchange ratio, heart rate (HR), muscle oxygen saturation, vertical impacts, and muscle tone and stiffness were assessed. RESULTS: During downhill running, V̇O2peak and V̇CO2 significantly decreased, and impacts higher than 6G significantly increased with a negative slope. During uphill running, V̇O2peak, V̇CO2, V̇E, and maximum HR significantly increased. Minimum values of oxygen saturation and the vastus medialis tone significantly decreased and impacts of 4-5 G significantly increased with a positive slope. CONCLUSIONS: Metabolic demand increased proportionally with the uphill slope and showed a linear negative relationship with a light and moderate downhill slope. Vertical impacts of high G-forces increased during downhill running, data that indicate the importance of our ability to attenuate impacts. Finally, muscle tone and stiffness remained stable at all times, results that demonstrated their acute adaptation to running in the absence of extreme fatigue.en_US
dc.format.mimetypeapplication/pdfen_US
dc.language.isoengen_US
dc.publisherEdizioni Minerva Medicaen_US
dc.relation.requiresAdobe PDFen_US
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internacional*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectTrail runningen_US
dc.subjectMuscle oxygen saturationen_US
dc.subjectMuscle toneen_US
dc.subjectStiffnessen_US
dc.subjectVO2en_US
dc.titleModifications of viscoelastic properties and physiological parameters after performing uphill and downhill running trials (Versión aceptada)en_US
dc.typeinfo:eu-repo/semantics/acceptedVersionen_US
dc.relation.publisherversionhttps://www.minervamedica.it/en/journals/sports-med-physical-fitness/article.php?cod=R40Y2021N05A0625en_US
dc.identifier.publicationfirstpagesin numeraren_US
dc.identifier.publicationlastpagesin numeraren_US
dc.identifier.doi10.23736/S0022-4707.20.11131-9en_US
dc.rights.accessrightsinfo:eu-repo/semantics/openAccessen_US
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