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dc.contributor.authorKarlsen, Trine
dc.contributor.authorSolli, Guro Strøm
dc.contributor.authorSamdal, Svein Tore
dc.contributor.authorSandbakk, Øyvind
dc.date.accessioned2021-03-16T11:24:38Z
dc.date.available2021-03-16T11:24:38Z
dc.date.created2020-11-16T10:24:26Z
dc.date.issued2020
dc.identifier.citationKarlsen, T., Solli, G. S., Samdal, S. T. & Sandbakk, Ø. (2020). Intensity control during block-periodized high-intensity training: Heart rate and lactate concentration during three annual seasons in world-class cross-country skiers. Frontiers in Sports and Active Living, 2: 549407. doi:en_US
dc.identifier.issn2624-9367
dc.identifier.urihttps://hdl.handle.net/11250/2733613
dc.description.abstractPurpose: To describe heart rate (HR) and blood lactate (Bla−) responses during high-intensity interval training (HIT) in a long-term block-periodized HIT regimen in world-class cross-country (XC) skiers. Methods: Data were collected in 14 world-class female XC skiers (aged 25 ± 5 years; body mass, 60.4 ± 6.5 kg; and maximal HR, 194 ± 8 beats · min−1) throughout three entire seasons. The HR and Bla− values were determined at the end of 572 intervals performed during 63 sessions and 17 HIT blocks utilizing different exercise modes: running, running with poles, and skiing (on-snow and roller ski) with classic and skating techniques. Results: The mean HR was 91 ± 3% of HRmax with a corresponding Bla− of 7.3 ± 2.1 mmol · L−1. The average HR and Bla− values were relatively similar across the different exercise modes, except for a lower HR (~90 vs. 92% of HRmax) for on-snow and roller ski classical skiing and lower Bla− values (5.9 vs. 7.0–7.8 mmol · L−1) for on-snow classical skiing compared to the other modes, both P < 0.05. An increase in HR and Bla− was observed from interval working periods 1 to 3 (90–92% of HRmax and 6.5–7.7 mmol · L−1) and further from 3 to 5 (92–93% of HRmax and 7.7–9.0 mmol · L−1), all P < 0.05. Conclusions: We describe long-term use of HIT-block periodization among world-class XC skiers who achieved target HR and Bla− levels in all six exercise modes employed. According to athletes and coaches, the key to successful blocks was intensity control to allow for high-quality HIT sessions throughout the entire HIT block.en_US
dc.language.isoengen_US
dc.publisherFrontiersen_US
dc.rightsNavngivelse 4.0 Internasjonal*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/deed.no*
dc.titleIntensity Control During Block-Periodized High-Intensity Training : Heart Rate and Lactate Concentration During Three Annual Seasons in World-Class Cross-Country Skiersen_US
dc.typePeer revieweden_US
dc.typeJournal articleen_US
dc.description.versionpublishedVersionen_US
dc.rights.holder© 2020 The Author(s)en_US
dc.subject.nsiVDP::Samfunnsvitenskap: 200::Samfunnsvitenskapelige idrettsfag: 330en_US
dc.source.pagenumber9en_US
dc.source.volume2en_US
dc.source.journalFrontiers in Sports and Active Livingen_US
dc.identifier.doi10.3389/fspor.2020.549407
dc.identifier.cristin1848218
dc.description.localcodeUnit Licence Agreementen_US
dc.source.articlenumber549407en_US


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