Stroke volume responses may be related to the gap between peak and maximal O-2 consumption

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dc.contributor.authorColakoglu, Muzaffer
dc.contributor.authorOzkaya, Ozgur
dc.contributor.authorBalci, Gorkem Aybars
dc.contributor.authorYapicioglu, Bulent
dc.date.accessioned2019-10-27T22:58:04Z
dc.date.available2019-10-27T22:58:04Z
dc.date.issued2016
dc.departmentEge Üniversitesien_US
dc.description.abstractBACKGROUND: Although several studies have focused on maximal O-2 uptake ((V) over dotO(2max)) measured by a verification phase following the determination of peak O-2 uptake ((V) over dotO(2peak)) by a graded exercise test, an explanation for the underlying mechanisms of the difference between (V) over dotO(2peak) and confirmed (V) over dotO(2max) is scant. OBJECTIVE: To explore the hypothesis that when the difference between (V) over dotO(2peak) and (V) over dotO(2max) (Delta(V) over dotO(2)) increases, the gap between peak stroke volume (SVpeak) and SV level corresponding to (V) over dotO(2peak) velocities (Delta SV) grows. METHODS: Nine moderately to well-trained male athletes ((V) over dotO(2max): 60.2 +/- 7 mL.min(-1).kg(-1)) volunteered to take part in the study. Following familiarization session, volunteers were asked to perform submaximal and maximal graded exercise tests. Then, constant-loading SVpeak tests (using wattages in a range from 40-100% of (V) over dotO(2peak)) and verification phase (using wattages corresponding with 100-110% of (V) over dotO(2peak)) were conducted in a climatic chamber. RESULTS: The Delta(V) over dotO(2) was well correlated with Delta SV (Pearson r = 0.89; p <= 0.001). The mean SVpeak of participants corresponded to 60.3 +/- 18% of (V) over dotO(2peak). (V) over dotO(2max) was significantly greater (11.2%) than (V) over dotO(2peak) (60.2 +/- 7 vs. 54.2 +/- 8.1 mL.min(-1).kg(-1)) (p <= 0.01). CONCLUSIONS: (V) over dotO(2peak) and (V) over dotO(2max) differences may be related to the gap between SVpeak and SV at (V) over dotO(2peak).en_US
dc.description.sponsorshipEge University, Scientific Research Projects FundEge University [EGE.ETK.2012.13-3.1/1, EGE.BAP.12.005]en_US
dc.description.sponsorshipThe present study was financially supported by Ege University, Scientific Research Projects Fund (EGE.ETK.2012.13-3.1/1; EGE.BAP.12.005). This study was awarded the best oral presentation in the field of Sports Physiology at the 14th National Sports Medicine Congress in Turkey.en_US
dc.identifier.doi10.3233/IES-160610
dc.identifier.endpage139en_US
dc.identifier.issn0959-3020
dc.identifier.issn1878-5913
dc.identifier.issn0959-3020en_US
dc.identifier.issn1878-5913en_US
dc.identifier.issue2en_US
dc.identifier.startpage133en_US
dc.identifier.urihttps://doi.org/10.3233/IES-160610
dc.identifier.urihttps://hdl.handle.net/11454/51428
dc.identifier.volume24en_US
dc.identifier.wosWOS:000378947900007en_US
dc.identifier.wosqualityQ4en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.language.isoenen_US
dc.publisherIos Pressen_US
dc.relation.ispartofIsokinetics and Exercise Scienceen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectCardiac outputen_US
dc.subjectnitrous-oxideen_US
dc.subjectpeak oxygen uptakeen_US
dc.subjectrebreathingen_US
dc.subjectverification phaseen_US
dc.titleStroke volume responses may be related to the gap between peak and maximal O-2 consumptionen_US
dc.typeArticleen_US

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