October 8, 2025Frontiers in PhysiologyOpen Access

The effect of XC-running race Lidingöloppet on determinants of performance

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Performance is predicted by oxygen uptake at lactate threshold, fat utilization, and running economy, indicating key factors for success.
The model explained 91.8% of the performance variance, emphasizing the significance of physiological measures in racing outcomes.
Oxygen cost of running increased post-race, likely driven by fat oxidation, although body mass and biomechanics remained consistent.
Findings may encourage training focused on optimizing running economy and oxygen uptake, even with limited sample variety.

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Analysis reveals running economy and biomechanics influence performance in cross-country races, suggesting training improvements.

Rapp et al. (2025) studied this question.

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