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Biomechanical analysis of different starting strategies utilized during cross-country skiing starts
Natl Dev Ctr Thunder Bay, Canada; Univ Jyväskylä, Finland.
Mid Sweden University, Faculty of Human Sciences, Department of Health Sciences.ORCID iD: 0000-0002-3814-6246
Univ Jyväskylä, Finland.
KIHU Res Inst Olymp Sports, Finland.
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2016 (English)In: European Journal of Sport Science, ISSN 1746-1391, E-ISSN 1536-7290, Vol. 16, no 8, 1111-1120 p.Article in journal (Refereed) Published
Abstract [en]

The present study was designed to analyse and compare the kinetics and kinematics associated with three different starting strategies during classic cross-country ski racing. Inside a ski tunnel, 12 elite male skiers performed three sets of three 38m starts. Each set included one start using: double poling only (DP), diagonal stride only (DIA) and freely chosen (FREE) (i.e. where subjects used the strategy or combination of strategies they felt was fastest) in random order. The first 18m was performed on a series of force plates that measured horizontal and vertical forces followed by 20m of a standard snow track. Additionally, cycle characteristics and joint angles were measured. DIA and FREE were faster over 38m than DP (P<.01). Net horizontal impulse (taking into account both positive and negative impulses) 5-10m after the start was lower during DP than during DIA and FREE (both P<.05). All subjects skied faster when using only DIA for the entire 38m. Furthermore, the sum duration and frequency of propulsive contacts over the first 18m was less in DP than DIA and FREE (P<.01). In conclusion, differences between the starting strategies examined was especially pronounced during the initial cycles. Transition from DIA to DP during the start also slowed the skiers, but optimal timing for such a transition was not elucidated.

Place, publisher, year, edition, pages
2016. Vol. 16, no 8, 1111-1120 p.
Keyword [en]
Kinematics, kinetics, technique, strength, transition
National Category
Medical and Health Sciences
Identifiers
URN: urn:nbn:se:miun:diva-29067DOI: 10.1080/17461391.2016.1177605ISI: 000382891300029Scopus ID: 2-s2.0-84965050074OAI: oai:DiVA.org:miun-29067DiVA: diva2:1033528
Available from: 2016-10-07 Created: 2016-10-07 Last updated: 2016-12-19Bibliographically approved

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CiteExportLink to record
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Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
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Language
  • de-DE
  • en-GB
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  • nn-NB
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