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Determinants of a simulated cross-country skiing sprint competition using V2 skating technique on roller skis
KIHU, Research Institute for Olympic Sports, Jyväskylä, Finland .
Mid Sweden University, Faculty of Human Sciences, Department of Health Sciences. (Swedish Winter Sports Research Centre)
Mid Sweden University, Faculty of Human Sciences, Department of Health Sciences. (Swedish Winter Sports Research Centre)ORCID iD: 0000-0002-3814-6246
KIHU – Research Institute for Olympic Sports, Jyväskylä, Finland .
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2010 (English)In: Journal of Strength and Conditioning Research, ISSN 1064-8011, E-ISSN 1533-4287, Vol. 24, no 2, p. 920-928Article in journal (Refereed) Published
Abstract [en]

The present study investigated the performance-predicting factors of a simulated cross-country (XC) skiing sprint competition on roller skis, on a slow surface. Sixteen elite male XC skiers performed a simulated sprint competition (4x850m heat/20 min recovery) using V2 skating technique on an indoor tartan track. Heat velocities, oxygen consumption and peak lactate were measured during or after the heats. Maximal skiing velocity was measured by performing a 30-m speed test. Explosive and maximal force production in the upper body was determined by bench press. Subjects also performed maximal anaerobic skiing test (MAST) and 2x2 km double poling (DP) test. The maximal velocity of MAST (VMAST) and velocities at 3 (V3), 5 (V5), 7 (V7) mmol∙l-1 lactate levels in MAST were determined. In the 2x2 km test DP economy (VO2SUBDP) and maximal 2 km DP velocity (VDP2KM) were determined. The best single performance predicting factors for the sprint performance were VDP2KM (r = 0.73, p<0.01), V7 (r = 0.70, p<0.01) and VO2SUBDP (r = -0.70, p<0.01). Faster skiers in sprint simulation had a higher absolute VO2 (l·min-1) (p<0.05–0.01) during sprint heats, as well as higher anaerobic skiing power (VMAST, p<0.05) and better anaerobic skiing economy (V3, V5, V7, p<0.05 – 0.001) than slower skiers. Faster skiers were also stronger in bench press, with regard to both absolute (p<0.01) and relative (p<0.05) values. In addition, anaerobic characteristics seem to be of importance at the beginning of the XC skiing sprint competition whereas the aerobic characteristics become more important as the XC skiing sprint competition progressed. This study indicates that sprint skiers should emphasize sport-specific upper body training, as well as training skiing economy at high speeds.

Place, publisher, year, edition, pages
Lippincott Williams & Wilkins , 2010. Vol. 24, no 2, p. 920-928
Keywords [en]
maximal anaerobic skiing test, sport-specific VO2, upper body capacity
National Category
Sport and Fitness Sciences
Identifiers
URN: urn:nbn:se:miun:diva-10811DOI: 10.1519/JSC.0b013e3181cbaaafISI: 000276631400005Scopus ID: 2-s2.0-77950667430OAI: oai:DiVA.org:miun-10811DiVA, id: diva2:283934
Projects
Integrative Physiologi & BiomechanicsAvailable from: 2010-01-02 Created: 2010-01-02 Last updated: 2017-12-12Bibliographically approved

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Laaksonen, MarkoHolmberg, Hans-Christer

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