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Running Economy in the Vertical Kilometer
Pablo Jesus Bascuas1, Héctor Gutiérrez1, Eduardo Piedrafita1
1Facultad de Ciencias de la Salud, Universidad San Jorge, Autov. A-23 Zaragoza-Huesca, 50830 Villanueva de Gallego, Spain.
This study analyzed key performance variables like mechanical power and metabolic power in trail runners during a vertical kilometer race. Results show significant differences based on runner level and terrain, offering new insights for performance monitoring.
Area of Science:
- Sports Science
- Exercise Physiology
- Biomechanics
Background:
- Trail running performance analysis is evolving with new metrics.
- Understanding fatigue and performance in vertical terrain is crucial.
Purpose of the Study:
- To analyze mechanical power, metabolic power, and related variables during a vertical kilometer race.
- To investigate differences in these variables between elite and sub-elite trail runners.
- To explore the relationship between mechanical and metabolic power in trail running.
Main Methods:
- Fifteen trained trail runners completed a vertical kilometer race.
- Portable gas analyzers (Cosmed K5) measured cardiorespiratory and metabolic responses.
- Repeated-measures ANOVA analyzed differences across sections, incline, and runner levels.
Main Results:
- Significant differences in mechanical power, metabolic power, and velocity were observed between runner levels.
- All analyzed variables showed significant differences across race sections, incline, and interactions.
- Mechanical power was significantly predicted by metabolic power and vertical net metabolic cost of transport (COT).
Conclusions:
- Mechanical power, metabolic power, and velocity are key differentiators in trail running performance.
- Integrating these metrics into wearable technology can enhance real-time performance monitoring for trail runners.
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