NDLI: Oxygen uptake at different intensities and sub-techniques predicts sprint performance in elite male cross-country skiers

Content Provider	Springer Nature Link
Author	Carlsson, Magnus Carlsson, Tomas Knutsson, Magnus Malm, Christer Tonkogi, Michail
Copyright Year	2014
Abstract	To investigate the relationship between sprint-prologue performance (using the classical technique) and the oxygen uptake at the lactate threshold ( $$ {\dot{\text V}{\rm O}} $$ 2obla), maximal oxygen uptake ( $$ {\dot{\text V}{\rm O}} $$ 2max), and mean oxygen uptake during double poling ( $$ {\dot{\text V}{\rm O}} $$ 2dp).Eight elite male cross-country skiers [age 24.8 ± 4.8 years, (mean ± SD)] completed two treadmill roller-skiing tests using the diagonal-stride technique and a 60 s double-poling test on a ski-ergometer to determine their $$ {\dot{\text V}{\rm O}} $$ 2obla, $$ {\dot{\text V}{\rm O}} $$ 2max, and $$ {\dot{\text V}{\rm O}} $$ 2dp. Performance data were generated from a 1.25 km sprint prologue. Power-function modelling was used to predict the skiers’ race speeds based on the oxygen-uptake variables and body mass.There were correlations between the race speed and the absolute expression of the $$ {\dot{\text V}{\rm O}} $$ 2obla (r = 0.79, P = 0.021), $$ {\dot{\text V}{\rm O}} $$ 2max (r = 0.86, P = 0.0069), and $$ {\dot{\text V}{\rm O}} $$ 2dp (r = 0.94, P = 0.00062). The following power-function models were established for race-speed prediction: 1.09 · $$ {\dot{\text V}{\rm O}} $$ 2obla0.21, 1.05 · $$ {\dot{\text V}{\rm O}} $$ 2max0.21, and 1.19 · $$ {\dot{\text V}{\rm O}} $$ 2dp0.20; these models explained 60 % (P = 0.024), 73 % (P = 0.0073), and 87 % (P = 0.00073), respectively, of the variance in the race speed. However, body mass did not contribute to any of the models (P = 0.97, 0.88, and 0.21, respectively).Oxygen uptake at different intensities and sub-techniques is an indicator of elite male sprint-prologue performance. The absolute expression of the investigated oxygen-uptake variables should be used when evaluating elite male sprint-prologue performances; if skiers oxygen uptake differs by 1 %, their performances will likely differ by 0.2 % in favour of the skier with higher oxygen uptake.
Starting Page	2587
Ending Page	2595
Page Count	9
File Format	PDF
ISSN	14396319
Journal	European Journal of Applied Physiology
Volume Number	114
Issue Number	12
e-ISSN	14396327
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2014-08-20
Publisher Place	Berlin/Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Double poling Sprint skiing Scaling $$ {\dot{\text V}{\rm O}} $$ V ˙ O 2max Lactate threshold Human Physiology Occupational Medicine/Industrial Medicine Sports Medicine
Content Type	Text
Resource Type	Article
Subject	Orthopedics and Sports Medicine Physiology (medical) Public Health, Environmental and Occupational Health Sports Science

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