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dc.contributor.authorMorrison, Jaime D
dc.contributor.authorQuinn, Karlee
dc.contributor.authorMacDonald, Luke A
dc.contributor.authorBillaut, Francois
dc.contributor.authorMinahan, Clare
dc.date.accessioned2020-01-21T04:43:12Z
dc.date.available2020-01-21T04:43:12Z
dc.date.issued2019
dc.identifier.issn1303-2968
dc.identifier.urihttp://hdl.handle.net/10072/390685
dc.description.abstractThis study determined if a single bout of repeated-sprint running under hypoxic (RSH) conditions was associated with impaired cognitive function when compared with repeated-sprint running under normoxic (RSN) conditions. Eleven amateur team-sport athletes performed a repeated-sprint running protocol (4 sets of 4, 4-s all-out sprints; i.e., RSR444) under both conditions (14.5% and 20.9% O2) on a non-motorized treadmill. Changes in SpO2, pre-frontal cortex total haemoglobin (Δ[THb]), oxyhaemoglobin (Δ[O2Hb]), deoxyhaemoglobin (Δ[HHb]) and cognitive function (detection task: DET; identification task: IDN; one card learning task: OCL; performed pre and 20 min post RSR444) were examined. During RSH, SpO2 was lower following each set (p ≤ 0.05), while [HHb] was higher after each set (p ≤ 0.05) compared with RSN. In addition, while there was no effect of condition on DET (p = 0.20) or IDN (p = 0.14), OCL accuracy was lower after, compared with before, RSH (p=0.04), but not RSN (p = 0.52). A significant relationship was observed between Δ[HHB] and ΔOCL accuracy (r = -0.68, p = 0.01). Performance of a single bout of RSH with 14.5% O2 resulted in impaired cognitive function in amateur team-sport athletes. Coaches should be mindful of timing of RSH prescription with regard to other training sessions that challenge speed and movement accuracy.
dc.description.peerreviewedYes
dc.languageEnglish
dc.language.isoeng
dc.publisherJournal of Sports Science & Medicine
dc.publisher.urihttps://www.jssm.org/hfabst.php?id=jssm-18-369.xml
dc.relation.ispartofpagefrom369
dc.relation.ispartofpageto375
dc.relation.ispartofissue2
dc.relation.ispartofjournalJournal of Sports Science & Medicine
dc.relation.ispartofvolume18
dc.subject.fieldofresearchMechanical engineering
dc.subject.fieldofresearchSports science and exercise
dc.subject.fieldofresearchPsychology
dc.subject.fieldofresearchcode4017
dc.subject.fieldofresearchcode4207
dc.subject.fieldofresearchcode52
dc.subject.keywordsScience & Technology
dc.subject.keywordsLife Sciences & Biomedicine
dc.subject.keywordsSport Sciences
dc.subject.keywordsAltitude
dc.subject.keywordsRSH
dc.titleRepeated Treadmill Sprints Impair Cognitive Performance in Amateur Team-Sport Athletes When Performed in Normobaric Hypoxia
dc.typeJournal article
dc.type.descriptionC1 - Articles
dcterms.bibliographicCitationMorrison, JD; Quinn, K; MacDonald, LA; Billaut, F; Minahan, C, Repeated Treadmill Sprints Impair Cognitive Performance in Amateur Team-Sport Athletes When Performed in Normobaric Hypoxia, Journal of Sports Science & Medicine, 2019, 18 (2), pp. 369-375
dcterms.dateAccepted2019-04-29
dc.date.updated2020-01-21T04:37:57Z
dc.description.versionVersion of Record (VoR)
gro.description.notepublicReprinted from Journal of Sports Science & Medicine, Morrison, et. al., Repeated Treadmill Sprints Impair Cognitive Performance in Amateur Team-Sport Athletes When Performed in Normobaric Hypoxia, (2019) 18, 369 - 375 with permission from the Journal of Sports Science & Medicine.
gro.rights.copyright© 2019 JSSM. The attached file is reproduced here in accordance with the copyright policy of the publisher. Please refer to the journal's website for access to the definitive, published version.
gro.hasfulltextFull Text
gro.griffith.authorMinahan, Clare L.


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