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dc.contributor.authorEttema, Gertjan
dc.contributor.authorBraaten, Steinar
dc.contributor.authorDanielsen, Jørgen
dc.contributor.authorFjeld, Birk Eirik
dc.date.accessioned2022-01-03T10:03:27Z
dc.date.available2022-01-03T10:03:27Z
dc.date.created2021-02-04T11:57:54Z
dc.date.issued2020
dc.identifier.citationJournal of Sports Sciences. 2020, 38 (18), 2155-2160.en_US
dc.identifier.issn0264-0414
dc.identifier.urihttps://hdl.handle.net/11250/2835762
dc.description.abstractImitation jumps are frequently used in training for ski jumping. Yet, the dynamics of these jumps differ considerably. Thus, the relevance of imitation jumps for ski jumping performance is not elucidated. The aim of this study was to investigate the relationship between the technical execution of imitation jumps and ski jumping performance level. We compared the imitation jumps of 11 ski jumpers of different performance levels using a Spearman correlation transform of time traces of the kinetics (measured using force cells and motion capture) of imitation jumps. The kinetic aspects that were related to performance centred on the moment arm of ground reaction force to the centre of mass before the onset of the push-off, angular momentum early in push-off, thigh angle during the main period of push-off and vertical velocity towards the end of push-off. We propose that the thigh angle may be a key element allowing high development of linear momentum while preparing for appropriate aerodynamic position. Furthermore, the findings suggest that the kinetic development prior to (and during) push-off is more important than the kinematic end state at take-off.en_US
dc.language.isoengen_US
dc.publisherTaylor and Francisen_US
dc.rightsNavngivelse-Ikkekommersiell 4.0 Internasjonal*
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/deed.no*
dc.titleImitation jumps in ski jumping: Technical execution and relationship to performance levelen_US
dc.typePeer revieweden_US
dc.typeJournal articleen_US
dc.description.versionacceptedVersionen_US
dc.source.pagenumber2155-2160en_US
dc.source.volume38en_US
dc.source.journalJournal of Sports Sciencesen_US
dc.source.issue18en_US
dc.identifier.doi10.1080/02640414.2020.1776913
dc.identifier.cristin1886676
dc.description.localcodeThis is the authors' accepted manuscript to an article published by Taylor & Francis.en_US
cristin.ispublishedtrue
cristin.fulltextpostprint
cristin.qualitycode1


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Navngivelse-Ikkekommersiell 4.0 Internasjonal
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