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dc.contributor.authorLosnegard, Thomas Johansen
dc.contributor.authorTosterud, Ola Kristoffer
dc.contributor.authorTrøen, Erik
dc.contributor.authorCarlsen, Camilla Høivik
dc.contributor.authorPaulsen, Gøran
dc.contributor.authorRud, Bjarne
dc.date.accessioned2020-05-05T09:06:00Z
dc.date.available2020-05-05T09:06:00Z
dc.date.created2019-11-26T11:33:58Z
dc.date.issued2019
dc.identifier.citationEuropean Journal of Applied Physiology. 2019, 119(11-12), 2579-2587.en_US
dc.identifier.issn1439-6319
dc.identifier.urihttps://hdl.handle.net/11250/2653296
dc.descriptionThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.en_US
dc.description.abstractPurpose: Previous studies have found an acute performance improvement with longer pole lengths in double poling (DP) at low-to-moderate speeds. We investigated the influence of pole lengths (PL) on O2-cost, 3D kinematics, and performance in DP at moderate-to-high speeds before (Pre) and after (Post) eight training sessions with long poles on a rollerski treadmill. Methods: Seven male and four female skiers completed tests with two different PLs (84 and 90% of body height). Submaximal O2-cost (1º; 4.5 [females] or 6 m s−1 [males]) and a peak velocity test (1º; ∼  7.3 m s−1) were assessed before and after a six week training period. The training sessions consisted of 50 min of low-moderate intensity training and 4 × 10 s maximal sprints with PL90%. Results: On average for all tests, PL84% induced 1.0 ± 1.0% higher peak velocity compared to PL90% (mean ± CI) with no difference in vertical displacement of center of mass (COMz). From Pre to Post, peak velocity and cycle time were increased and the displacement of COMz were reduced similarly for both PLs. At moderate speed, PL90% induced less displacement of COMz with subsequent 1.1 ± 0.7% lower O2-cost compared to PL84%. From Pre to Post, the O2-cost and COMz were reduced similarly for both PLs. Conclusions: Longer PL than skiers self-selected lengths reduce O2-cost at moderate speeds, but induced lower peak velocity. Eight sessions of training with PL90% did not influence the difference between PL84% and PL90% on O2-cost, kinematics or peak velocity.en_US
dc.language.isoengen_US
dc.subjectcross-country skiingen_US
dc.subjectcross-country skiersen_US
dc.subjecteconomyen_US
dc.subjectequipmenten_US
dc.subjectcenter of massen_US
dc.subjectskiing techniqueen_US
dc.titleThe influence of pole lengths on O2-cost, kinematics, and performance in double poling at high speeds before and after a training period with long polesen_US
dc.typePeer revieweden_US
dc.typeJournal articleen_US
dc.description.versionpublishedVersionen_US
dc.rights.holder© The Author(s) 2019en_US
dc.source.pagenumber2579-2587en_US
dc.source.volume119en_US
dc.source.journalEuropean Journal of Applied Physiologyen_US
dc.source.issue11-12en_US
dc.identifier.doi10.1007/s00421-019-04237-z
dc.identifier.cristin1752341
dc.description.localcodeSeksjon for fysisk prestasjonsevne / Department of Physical Performanceen_US
cristin.unitcode150,31,0,0
cristin.unitnameSeksjon for fysisk prestasjonsevne
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode1


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