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dc.contributor.authorTheofilidis, George
dc.contributor.authorBogdanis, Gregory C
dc.contributor.authorStavropoulos-Kalinoglou, Antonios
dc.contributor.authorKrase, Argyro A
dc.contributor.authorTsatalas, Themistoklis
dc.contributor.authorShum, Gary
dc.contributor.authorSakkas, Giorgos K
dc.contributor.authorKoutedakis, Yiannis
dc.contributor.authorKaratzaferi, Christina
dc.date.accessioned2021-01-25T11:42:45Z
dc.date.available2021-01-25T11:42:45Z
dc.date.issued2021-01-05
dc.identifier.citationTheofilidis, G., Bogdanis, G.C., Stavropoulos‐Kalinoglou, A. et al. (2021) The effects of training with high-speed interval running on muscle performance are modulated by slope, Physiological Reports. https://doi.org/10.14814/phy2.14656en
dc.identifier.issn2051-817Xen
dc.identifier.pmid33400851 (pubmed)
dc.identifier.doi10.14814/phy2.14656en
dc.identifier.urihttp://hdl.handle.net/2436/623891
dc.description© 2021 The Authors. Published by Wiley. This is an open access article available under a Creative Commons licence. The published version can be accessed at the following link on the publisher’s website: https://doi.org/10.14814/phy2.14656en
dc.description.abstractWe examined changes in selected muscle performance parameters after 8 weeks of interval training using two opposite running inclinations. We hypothesized that the uphill training will affect endurance muscle performance outcomes, whereas the downhill training will affect power muscle performance outcomes. Fourteen physically active volunteers were randomly assigned into either the Uphill group (UG; n = 7; uphill interval running at +10% incline) or the Downhill group (DG; n = 7; downhill interval running at -10% incline) and completed 16 training sessions. Each session consisted of ten 30 s treadmill runs at 90% of maximum aerobic speed (MAS) with a work to rest ratio of 1:2. Vertical jump performance, isometric (MVC) and isokinetic torque of knee extensors and flexors, and fatigue of knee extensors were evaluated pre and post-training. Moreover, body composition (via bioimpedance) and vastus lateralis muscle architecture (via ultrasonography) were assessed pre and post-training. Relative lean tissue mass, relative fat mass, and squat jump (cm) significantly (p < .05) changed from baseline values by +4.5 ± 4.0%, -11.5 ± 9.6%, and +9.5 ± 11.7%, respectively, only in the DG. Similarly, DG improved absolute values of knee extension rate of torque development and impulse (p < .05), whereas knee flexion peak torque angle significantly decreased in both groups (p < .05). On the other hand, the UG increased the number of repetitions achieved during the fatigue protocol and total work by 21.2 ± 32.6% and 13.8 ± 21.2%, respectively (p < .05). No differences were found between groups in muscle architecture. Introducing variations in slope during HIIT could be used to induce specific improvements toward muscle endurance or power performance characteristics.en
dc.formatapplication/pdfen
dc.languageeng
dc.language.isoenen
dc.publisherWileyen
dc.relation.urlhttps://physoc.onlinelibrary.wiley.com/doi/10.14814/phy2.14656en
dc.rightsLicence for published version: Creative Commons Attribution 4.0 International
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectconcurrent trainingen
dc.subjectfatigueen
dc.subjectinterval trainingen
dc.subjectmuscle poweren
dc.subjectoptimization of trainingen
dc.titleThe effects of training with high-speed interval running on muscle performance are modulated by slopeen
dc.typeJournal articleen
dc.identifier.eissn2051-817X
dc.identifier.journalPhysiological Reportsen
dc.date.updated2021-01-24T19:48:14Z
dc.contributor.institutionExperimental Physiology & Therapeutic Exercise Laboratory, Muscle Physiology and Mechanics Group, CREHP, School of Physical Education Sports Science and Nutrition, University of Thessaly, Trikala, Greece.
pubs.place-of-publicationUnited States
dc.date.accepted2020-11-01
rioxxterms.funderMSCA‐RISE Muscle Stress Reliefen
rioxxterms.identifier.project645648en
rioxxterms.versionVoRen
rioxxterms.licenseref.urihttp://creativecommons.org/licenses/by/4.0/en
rioxxterms.licenseref.startdate2021-01-25en
dc.source.volume9
dc.source.issue1
dc.source.beginpagee14656
dc.description.versionPublished version
refterms.dateFCD2021-01-25T11:42:33Z
refterms.versionFCDVoR
refterms.dateFOA2021-01-25T11:42:48Z


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Licence for published version: Creative Commons Attribution 4.0 International
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