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Mathematical simulation of energy expenditure and recovery during sprint cross-country skiing

Authors Moxnes JF, Moxnes E

Received 6 February 2014

Accepted for publication 19 March 2014

Published 14 May 2014 Volume 2014:5 Pages 115—121

DOI https://doi.org/10.2147/OAJSM.S62020

Checked for plagiarism Yes

Review by Single-blind

Peer reviewer comments 2


John F Moxnes,1 Eldbjørg Dirdal Moxnes2

1Protection and Societal Security Division, Norwegian Defence Research Establishment, Kjeller, Norway; 2Department of Geosciences, University of Oslo, Oslo, Norway

Purpose: A cross-country sprint competition relies on maximal effort durations of 3–4 minutes. Significant anaerobic energy contribution is expected. Anaerobic energy contribution has been estimated in different sports to date from the accumulated O2 deficit. However, the O2-deficit model can be questioned. We investigate anaerobic energy contribution by applying other methods than the O2 deficit.
Methods: Theoretical model development.
Results: For sprint cross-country competitions, the anaerobic energy contribution was 20%–25% independent of the employed mathematical model. Recovery times of a minimum 20 minutes were found to be required after sprint races to be sure that the performance in subsequent heats was not influenced.
Conclusion: The O2-deficit model gave anaerobic energy results in agreement with other models from the literature. Recovery times of a minimum 20 minutes were found to be required after sprint races to be sure that the performance in subsequent heats was not influenced.

Keywords: aerobic, anaerobic, models, endurance sport, recovery

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