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dc.contributor.authorCockcroft, EJ
dc.contributor.authorWilliams, CA
dc.contributor.authorWeaver, H
dc.contributor.authorO'Connor, A
dc.contributor.authorJackman, SR
dc.contributor.authorArmstrong, N
dc.contributor.authorBarker, AR
dc.date.accessioned2017-11-28T11:11:49Z
dc.date.issued2017-10-01
dc.description.abstractThis study examined the time course of adaptions in insulin sensitivity (IS) in adolescent boys after acute high-intensity interval exercise (HIIE) and moderate-intensity exercise (MIE). Eight boys (15.1±0.4 y) completed three 3-day experimental trials in a randomised order: 1) 8×1 min cycling at 90% peak power with 75 s recovery (HIIE); 2) cycling at 90% of gas exchange threshold for a duration to match work during HIIE (MIE); and 3) rest (CON). Plasma [glucose] and [insulin] were measured before (PRE-Ex), 24 and 48 h post (24 h-POST, 48 h-POST) in a fasted state, and 40 min (POST-Ex) and 24 h (24 h-POST) post in response to an oral glucose tolerance test (OGTT). IS was estimated using the Cederholm (OGTT) and HOMA (fasted) indices. There was no change to HOMA at 24 h or 48 h-POST (all P>0.05). IS from the OGTT was higher POST-EX for HIIE compared to CON (17.4%, P=0.010, ES=1.06), and a non-significant increase in IS after MIE compared to CON (9.0%, P=0.14, ES=0.59). At 24 h-POST, IS was higher following both HIIE and MIE compared to CON (HIIE: P=0.019, 13.2%, ES=0.88; MIE: 9.7%, P=0.024, ES=0.65). In conclusion, improvements to IS after a single bout of HIIE and MIE persist up to 24 h after exercise when assessed by OGTT.en_GB
dc.identifier.citationPublished online 1 October 2017en_GB
dc.identifier.doi10.1055/s-0043-118007
dc.identifier.urihttp://hdl.handle.net/10871/30486
dc.language.isoenen_GB
dc.publisherThieme Publishingen_GB
dc.rights.embargoreasonPublisher policyen_GB
dc.rights© 2017 Georg Thieme Verlag KG Stuttgarten_GB
dc.subjectCardiometabolic healthen_GB
dc.subjectphysical activityen_GB
dc.subjectyouthen_GB
dc.subjectHOMAen_GB
dc.subjectglucoseen_GB
dc.titleAcute Exercise and Insulin Sensitivity in Boys: A Time-Course Studyen_GB
dc.typeArticleen_GB
dc.identifier.issn0172-4622
exeter.place-of-publicationGermanyen_GB
dc.descriptionThis is the author accepted manuscript. The final version is available from Thieme Publishing via the DOI in this record.en_GB
dc.identifier.eissn1439-3964
dc.identifier.journalInternational Journal of Sports Medicineen_GB
dc.identifier.pmid28965340


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