Metabolically Optimal Gait Transitions in Cross-Country Skate Skiing

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atmire.migration.oldid2461
dc.contributor.advisorHerzog, Walter
dc.contributor.authorKillick, Anthony
dc.date.accessioned2014-09-04T20:53:26Z
dc.date.available2014-11-17T08:00:43Z
dc.date.issued2014-09-04
dc.date.submitted2014en
dc.description.abstractAnimals change gait patterns to minimize metabolic cost. Horses walk at slow speeds, trot at intermediate speeds, and gallop at high speeds. Likewise, cross-country skiers use the 2-skate technique at slow speeds, the 1-skate technique at intermediate speeds, but then, in contrast to everything known about animal locomotion, they revert to the previously rejected 2-skate technique at high speeds. I determined the oxygen cost for the 1- and 2-skate technique while measuring forces in the skis and poles for eight athletes skiing at speeds ranging from 6-35km/h. I found that the oxygen cost curves for the two techniques intersected twice, and that propulsion comes primarily from the poles for the 1-skate and the skis for the 2-skate technique. Furthermore, the arm action becomes metabolically much more costly with increasing speeds of skiing than the leg action, thereby partly explaining the non-intuitive gait transitions in skiers.en_US
dc.identifier.citationKillick, A. (2014). Metabolically Optimal Gait Transitions in Cross-Country Skate Skiing (Master's thesis, University of Calgary, Calgary, Canada). Retrieved from https://prism.ucalgary.ca. doi:10.11575/PRISM/26883en_US
dc.identifier.doihttp://dx.doi.org/10.11575/PRISM/26883
dc.identifier.urihttp://hdl.handle.net/11023/1727
dc.language.isoeng
dc.publisher.facultyGraduate Studies
dc.publisher.facultyKinesiology
dc.publisher.institutionUniversity of Calgaryen
dc.publisher.placeCalgaryen
dc.rightsUniversity of Calgary graduate students retain copyright ownership and moral rights for their thesis. You may use this material in any way that is permitted by the Copyright Act or through licensing that has been assigned to the document. For uses that are not allowable under copyright legislation or licensing, you are required to seek permission.
dc.subjectPhysiology
dc.subjectBiophysics
dc.subjectEngineering--Biomedical
dc.subject.classificationBiomechanicsen_US
dc.subject.classificationGaiten_US
dc.subject.classificationCross-Country Skiingen_US
dc.subject.classificationEconomyen_US
dc.subject.classificationSkatingen_US
dc.titleMetabolically Optimal Gait Transitions in Cross-Country Skate Skiing
dc.typemaster thesis
thesis.degree.grantorUniversity of Calgary
thesis.degree.nameMaster of Science (MSc)
ucalgary.item.requestcopytrue
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