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dc.contributor.authorSagelv, Edvard Hamnvik
dc.contributor.authorEngseth, Tina
dc.contributor.authorPedersen, Sigurd
dc.contributor.authorPettersen, Svein Arne
dc.contributor.authorMathisen, Gunnar
dc.contributor.authorHeitmann, Kim Arne
dc.contributor.authorWelde, Boye
dc.contributor.authorThomassen, Tor Oskar
dc.contributor.authorStoggl, Thomas Leonhard
dc.date.accessioned2018-11-22T14:49:17Z
dc.date.available2018-11-22T14:49:17Z
dc.date.issued2018-11-16
dc.description.abstractLonger distance cross-country ski (14–220 km) races such as the Visma Ski Classics (VSC) has recently gained attention in addition to the traditional Olympic distances (5–50 km) associated with cross-country (XC) skiing. These long-distance races are characterized by extensive use of the upper body while double poling (DP). While there is a substantial amount of research on Olympic distance XC skiing, the physiological capacities of VSC skiers has not yet been explored. We recruited seven elite male VSC skiers and seven well-trained national level male XC skiers to undergo three tests in the laboratory: (1) a one repetition maximum (1RM) strength test in a cable pulldown; (2) roller skiing tests on a treadmill (10.5% inclination) for determination of gross efficiency (GE) at submaximal speeds (8 and 10 km·h<sup>−1</sup>) in DP and diagonal stride (DS); (3) two ramp protocols to exhaustion (15% inclination, starting speed 7 km·h<sup>−1</sup>) in DP and DS for the assessment of peak and maximal oxygen uptake (VO<sub>2peak</sub> and V), respectively. Compared with the national level XC skiers, the VSC skiers performed similar in the 1RM cable pulldown, displayed 12.2% higher GE in DP at 8 km·h<sup>−1</sup> but did not display any difference at 10 km·h<sup>−1</sup>, and had lower blood lactate concentration and heart rate at both submaximal speeds. The VSC skiers had longer time to exhaustion compared with the national level XC skiers during the two ramp protocols in DS (18%) and in DP (29%). The V. was 10% higher in DS compared with DP, with no differences between the groups. The VO<sub>2peak</sub>/V-ratio of 90% did not differ between the two groups. In conclusion, the main differences were lower cardiorespiratory and metabolic responses at submaximal speeds as well as longer time to exhaustion in VSC skiers compared with national level XC skiers. This suggest efficiency to be the main difference between VSC and national level XC skiers.en_US
dc.description.sponsorshipSparebanken 1 Nord-Norge UiT Norges arktiske universiteten_US
dc.descriptionSource at <a href=https://doi.org/10.3389/fphys.2018.01523> https://doi.org/10.3389/fphys.2018.01523 </a>en_US
dc.identifier.citationSagelv, E.H., Engseth, T., Pedersen, S., Pettersen, S.A., Mathisen, G.E.M., Heitmann, K.A., ... Stoggl, T.L. (2018). Physiological Comparisons of Elite Visma Ski Classic Athletes and National Level Cross-Country Skiers During Uphill Treadmill Roller Skiing. <i>Frontiers in Physiology</i>. 9:1523. https://doi.org/10.3389/fphys.2018.01523en_US
dc.identifier.issn1664-042X
dc.identifier.otherFRIDAID 1631476
dc.identifier.otherhttps://doi.org/10.3389/fphys.2018.01523
dc.identifier.urihttps://hdl.handle.net/10037/14224
dc.language.isoengen_US
dc.publisherFrontiers Mediaen_US
dc.relation.journalFrontiers in Physiology
dc.rights.accessRightsopenAccessen_US
dc.subjectVDP::Medical disciplines: 700::Sports medicine: 850en_US
dc.subjectVDP::Medisinske Fag: 700::Idrettsmedisinske fag: 850en_US
dc.subjectdiagonal strideen_US
dc.subjectdouble poolingen_US
dc.subjectlong-distanceen_US
dc.subjectgross efficiencyen_US
dc.subjectmaximal oxygen uptakeen_US
dc.subjectsubmaximal oxygen uptakeen_US
dc.titlePhysiological Comparisons of Elite Male Visma Ski Classics and National Level Cross-Country Skiers During Uphill Treadmill Roller Skiingen_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


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