| Title: |
Performance Determinants in Trail-Running Races of Different Distances. |
| Authors: |
Pastor, Frederic Sabater; Besson, Thibault; Varesco, Giorgio; Parent, Audrey; Fanget, Marie; Koral, Jérôme; Foschia, Clément; Rupp, Thomas; Rimaud, Diana; Féasson, Léonard; Millet, Guillaume Y. |
| Source: |
International Journal of Sports Physiology & Performance; Jun2022, Vol. 17 Issue 6, p844-851, 8p, 3 Charts, 2 Graphs |
| Subject Terms: |
EXERCISE tests; RUNNING; CARDIOPULMONARY system; OXYGEN consumption; ATHLETES; ATHLETIC ability |
| Abstract: |
Purpose: While the physiological determinants of road running have been widely studied, there is a lack of research in trail-running racing performance. The aim of our study was to determine the physiological predictors of trail-running performance in races of different distances in similar terrain and weather conditions. Methods: Seventy-five trail runners participating in one of the races of the Ultra-Trail du Mont-Blanc were recruited. Previous to the race, each runner was evaluated with (1) an incremental treadmill test to determine maximal oxygen uptake, ventilatory thresholds, cost of running, and substrate utilization; (2) a power–force–velocity profile on a cycle ergometer; (3) maximal voluntary contractions of the knee extensors and plantar flexors; and (4) anthropometric characteristics. Neuromuscular fatigue was evaluated after the races. Twenty-four runners finished a SHORT (145 km) race. Correlations and multiple linear regressions were used to find the determinants of performance in each race distance. Results: Performance in SHORT was explained by maximal oxygen uptake and lipid utilization at 10 km/h (r2 =.825, P |
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| Database: |
Complementary Index |