Oral presentation at ECSS 2026: modelling energy pathways in the field
Jérémy Briand delivered an oral presentation at the 31st Annual Congress of the European College of Sport Science (ECSS), held at the SwissTech Convention Center in Lausanne, Switzerland, July 7-10, 2026.
Dynamic energy pathway modelling of field-based running shuttle tests
His presentation, titled Dynamic energy pathway modelling of field-based running shuttle tests, results from a collaboration with Pietro E. di Prampero, Cristian Osgnach, Gaspare Pavei, Giacomo Faraci, Guy Thibault, and Jonathan Tremblay.
Key findings
The study validates integrating GPS-derived metabolic power into Mader’s dynamic bioenergetic model, in 21 soccer athletes performing maximal shuttle tests with GPS units (20 Hz) and a portable metabolic analyzer (COSMED K5):
- Root mean square error of 5.3 ± 1.5 mL/kg/min for VO₂, with a bias of 0.1 ± 1.9 mL/kg/min
- Simulated total oxygen consumption within 5% of measured values
- Among athletes reaching similar end-test blood lactate (9-12 mmol/L), maximal glycolytic rate (VLamax) differed up to 4-fold depending on VO₂max and running economy
Partitioning energy supply across alactic, glycolytic, and aerobic pathways in field conditions opens the door to more individualized training and recovery strategies in team sports.
Congratulations to Jérémy on this presentation on the international stage!
The LPEBA Team