التفاصيل البيبلوغرافية
| العنوان: |
Submaximal force–velocity relationships during mountain ultramarathon: Data from the field. |
| المؤلفون: |
Delhaye, Clément1 clement.delhaye@univ-smb.fr, Rozier-Delgado, Pablo1, Vonderscher, Mylène1, Di Domenico, Hervé1, Bowen, Maximilien1, Millet, Guillaume2, Morin, Jean-Benoit2, Samozino, Pierre1, Morel, Baptiste1 |
| المصدر: |
Journal of Sports Sciences. Oct2024, Vol. 42 Issue 20, p1881-1890. 10p. |
| مصطلحات موضوعية: |
*CROWDSOURCING, *LONG-distance running, *RESEARCH funding, *FATIGUE (Physiology), *DESCRIPTIVE statistics, *EXERCISE intensity, *MOUNTAINEERING, *PHYSICAL fitness, *ATHLETIC ability, *TIME |
| مستخلص: |
This study presents a novel method for evaluating the submaximal velocity-force (V(F)) relationship in mountain ultramarathon races using crowdsourced data from Strava.com. The dataset includes positional data from 408 participants of the 171-km UTMB® 2023 race (9,850-m D+). The race was divided into 100-m segments. The mean net propulsive force and velocity were computed for each segment to describe the submaximal V(F) relationship as a rational function of three parameters. F1: propulsive force at 1 m · s−1; V0: theoretical maximum velocity on flat terrain; C: curvature parameter (the lower C, the more linear the V(F) relationship). The V(F) profile parameters were found to be F1 = 1.80 ± 0.33 N · kg−1, V0 = 2.36 ± 0.42 m · s−1, and C = 0.66 ± 1.81, with good independence between the parameters within a group of homogeneous performance. The best athletes had the highest F1, V0, and C values. V(F) parameters were affected by fatigue during the race, with decreases of 20.9%, 32.0%, and 59.8% between the first and second parts of the race respectively. These findings suggest that the V(F) relationship is an interesting original approach for studying performance and fatigability during mountain ultra-endurance races. [ABSTRACT FROM AUTHOR] |
| قاعدة البيانات: |
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