Repeated-Sprint Training in Hypoxia Induced by Voluntary Hypoventilation in Swimming

Détails

ID Serval
serval:BIB_657F65627A21
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Institution
Titre
Repeated-Sprint Training in Hypoxia Induced by Voluntary Hypoventilation in Swimming
Périodique
International Journal of Sports Physiology and Performance
Auteur(s)
Trincat L., Woorons X., Millet G. P.
ISSN
1555-0273 (Online)
1555-0265 (Print)
Statut éditorial
Publié
Date de publication
03/2017
Peer-reviewed
Oui
Volume
12
Numéro
3
Pages
329-335
Langue
anglais
Notes
Trincat, Laurent
Woorons, Xavier
Millet, Gregoire P
2016/06/14 06:00
Epub 2016 Aug 24.
Résumé
PURPOSE: Repeated-sprint training in hypoxia (RSH) has been shown as an efficient method for improving repeated-sprint ability (RSA) in team-sport players but has not been investigated in swimming. We assessed whether RSH with arterial desaturation induced by voluntary hypoventilation at low lung volume (VHL) could improve RSA to a greater extent than the same training performed under normal breathing (NB) conditions. METHODS: Sixteen competitive swimmers completed 6 sessions of repeated sprints (2 sets of 16 x 15 m with 30 s send-off) either with VHL (RSH-VHL, n = 8) or with NB (RSN, n = 8). Before and after training, performance was evaluated through an RSA test (25-m all-out sprints with 35 s send-off) until exhaustion. RESULTS: From before to after training, the number of sprints was significantly increased in RSH-VHL (7.1 +/- 2.1 vs 9.6 +/- 2.5; P < .01) but not in RSN (8.0 +/- 3.1 vs 8.7 +/- 3.7; P = .38). Maximal blood lactate concentration ([La]max) was higher after than before in RSH-VHL (11.5 +/- 3.9 vs 7.9 +/- 3.7 mmol/L; P = .04) but was unchanged in RSN (10.2 +/- 2.0 vs 9.0 +/- 3.5 mmol/L; P = .34). There was a strong correlation between the increases in the number of sprints and in [La]max in RSH-VHL only (R = .93, P < .01). CONCLUSIONS: RSH-VHL improved RSA in swimming, probably through enhanced anaerobic glycolysis. This innovative method allows inducing benefits normally associated with hypoxia during swim training in normoxia.
Pubmed
Création de la notice
20/05/2017 16:59
Dernière modification de la notice
20/08/2019 14:21
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