Innovations in hypoxic training

Détails

Ressource 1Télécharger: BIB_C6AD7DC13BA2.P001.pdf (6309.40 [Ko])
Etat: Public
Version: Après imprimatur
ID Serval
serval:BIB_C6AD7DC13BA2
Type
Thèse: thèse de doctorat.
Collection
Publications
Institution
Titre
Innovations in hypoxic training
Auteur(s)
Faiss R.
Directeur(s)
Millet G. P.
Détails de l'institution
Université de Lausanne, Faculté de biologie et médecine
Adresse
Faculté de biologie et de médecine Université de Lausanne UNIL - Bugnon Rue du Bugnon 21 - bureau 4111 CH-1015 Lausanne SUISSE
ISBN
978-2-8399-1443-7
Statut éditorial
Acceptée
Date de publication
06/2014
Langue
anglais
Nombre de pages
210
Résumé
Athletes seem compelled to include some forms of altitude training in their preparation expecting additional performance gains compared to equivalent training at sea-level. For the general population, altitude training often only consists in spending weeks at altitude to enhance red blood cell production, hemoglobin mass and thus oxygen delivery to the muscles. Over the past two decades, intermittent hypoxic training (IHT), that is, a method where athletes live at or near sea-level but train in hypobaric hypoxia (HH, real altitude) or normobaric hypoxia (NH, simulated altitude) was shown to induce exclusive adaptations directly at the muscular level that may support performance improvements. Our work first demonstrated significant differences between exposure and exercise in HH vs. NH that may help disentangling hypoxia and hypobaria for athletes or mountaineers who use NH to prepare for altitude competitions or expeditions.
Second, we produced a comprehensive review of the strikingly poor and controversial benefits of IHT for performance enhancement in team or racket sports. Using evidence of peripheral muscular adaptations with the recruitment of fast-twitch fibers playing a major role, we then developed and assessed the potential of a new training method in hypoxia based on the repetitions of "all-out" sprints interspersed with incomplete recovery periods, the so called "repeated sprint training in hypoxia" (RSH). We have consequently shown RSH to delay fatigue when sprints with incomplete recoveries are repeated until exhaustion both in cycling and cross-country ski double poling. We definitely outlined RSH as a promising training strategy and proposed new studies to judge the efficacy of RSH in team sports and determine the specific mechanisms that may enhance team game results.
In conclusion, our work allowed updating the panorama over the contemporary hypoxic training possibilities. It provides an overview of the current scientific knowledge about intermittent hypoxic training and repeated sprint training in hypoxia (RSH). This will benefit athletes and teams in intermittent sports looking to include a hypoxic stimulus to their training to gain a specific competitive edge.
Mots-clé
hypoxia, performance, training, repeated sprint training in hypoxia, RSH
Création de la notice
17/06/2014 14:07
Dernière modification de la notice
20/08/2019 15:42
Données d'usage