Vis enkel innførsel

dc.contributor.authorSandbakk, Øyvind
dc.contributor.authorHegge, Ann Magdalen H. S.
dc.contributor.authorEttema, Gertjan
dc.date.accessioned2019-10-28T08:07:16Z
dc.date.available2019-10-28T08:07:16Z
dc.date.created2013-11-28T18:05:59Z
dc.date.issued2013
dc.identifier.citationFrontiers in Physiology. 2013, 4 .nb_NO
dc.identifier.issn1664-042X
dc.identifier.urihttp://hdl.handle.net/11250/2624767
dc.description.abstractThe ability to efficiently utilize metabolic energy to produce work is a key factor for endurance performance. The present study investigated the effects of incline, performance level, and gender on the gross mechanical efficiency during roller ski skating. Thirty-one male and nineteen female elite cross-country skiers performed a 5-min submaximal session at approximately 75% of VO2peak on a 5% inclined treadmill using the G3 skating technique. Thereafter, a 5-min session on a 12% incline using the G2 skating technique was performed at a similar work rate. Gross efficiency was calculated as the external work rate against rolling friction and gravity divided by the metabolic rate using gas exchange. Performance level was determined by the amount of skating FIS points [the Federation of International Skiing (FIS) approved scoring system for ski racing] where fewer points indicate a higher performance level. Strong significant correlations between work rate and metabolic rate within both inclines and gender were revealed (r = −0.89 to 0.98 and P < 0.05 in all cases). Gross efficiency was higher at the steeper incline, both for men (17.1 ± 0.4 vs. 15.8 ± 0.5%, P < 0.05) and women (16.9 ± 0.5 vs. 15.7 ± 0.4%, P < 0.05), but without any gender differences being apparent. Significant correlations between gross efficiency and performance level were found for both inclines and genders (r = −0.65 to 0.81 and P < 0.05 in all cases). The current study demonstrated that cross-country skiers of both genders used less metabolic energy to perform the same amount of work at steeper inclines, and that the better ranked elite male and female skiers skied more efficiently.nb_NO
dc.language.isoengnb_NO
dc.publisherFrontiers Medianb_NO
dc.rightsNavngivelse 4.0 Internasjonal*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/deed.no*
dc.titleThe role of incline, performance level and gender on the gross mechanical efficiency of roller ski skatingnb_NO
dc.typeJournal articlenb_NO
dc.typePeer reviewednb_NO
dc.description.versionpublishedVersionnb_NO
dc.source.pagenumber5nb_NO
dc.source.volume4nb_NO
dc.source.journalFrontiers in Physiologynb_NO
dc.identifier.doi10.3389/fphys.2013.00293
dc.identifier.cristin1070647
dc.description.localcodeCopyright © 2013 Sandbakk, Hegge and Ettema. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY).nb_NO
cristin.unitcode194,65,30,0
cristin.unitnameInstitutt for nevromedisin og bevegelsesvitenskap
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode1


Tilhørende fil(er)

Thumbnail

Denne innførselen finnes i følgende samling(er)

Vis enkel innførsel

Navngivelse 4.0 Internasjonal
Med mindre annet er angitt, så er denne innførselen lisensiert som Navngivelse 4.0 Internasjonal