"Live High-Train Low and High" Hypoxic Training Improves Team-Sport Performance.

Détails

ID Serval
serval:BIB_BAC7BB1AB1E2
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Institution
Titre
"Live High-Train Low and High" Hypoxic Training Improves Team-Sport Performance.
Périodique
Medicine and Science In Sports and Exercise
Auteur(s)
Brocherie F., Millet G.P., Hauser A., Steiner T., Rysman J., Wehrlin J.P., Girard O.
ISSN
1530-0315 (Electronic)
ISSN-L
0195-9131
Statut éditorial
Publié
Date de publication
2015
Peer-reviewed
Oui
Volume
47
Numéro
10
Pages
2140-2149
Langue
anglais
Notes
Publication types: Journal Article ; Randomized Controlled Trial ; Research Support, Non-U.S. Gov't
Publication Status: ppublish
Résumé
PURPOSE: This study aims to investigate physical performance and hematological changes in 32 elite male team-sport players after 14 d of "live high-train low" (LHTL) training in normobaric hypoxia (≥14 h·d at 2800-3000 m) combined with repeated-sprint training (six sessions of four sets of 5 × 5-s sprints with 25 s of passive recovery) either in normobaric hypoxia at 3000 m (LHTL + RSH, namely, LHTLH; n = 11) or in normoxia (LHTL + RSN, namely, LHTL; n = 12) compared with controlled "live low-train low" (LLTL; n = 9) training.
METHODS: Before (Pre), immediately after (Post-1), and 3 wk after (Post-2) the intervention, hemoglobin mass (Hbmass) was measured in duplicate [optimized carbon monoxide (CO) rebreathing method], and vertical jump, repeated-sprint (8 × 20 m-20 s recovery), and Yo-Yo Intermittent Recovery level 2 (YYIR2) performances were tested.
RESULTS: Both hypoxic groups similarly increased their Hbmass at Post-1 and Post-2 in reference to Pre (LHTLH: +4.0%, P < 0.001 and +2.7%, P < 0.01; LHTL: +3.0% and +3.0%, both P < 0.001), whereas no change occurred in LLTL. Compared with Pre, YYIR2 performance increased by ∼21% at Post-1 (P < 0.01) and by ∼45% at Post-2 (P < 0.001), with no difference between the two intervention groups (vs no change in LLTL). From Pre to Post-1, cumulated sprint time decreased in LHTLH (-3.6%, P < 0.001) and LHTL (-1.9%, P < 0.01), but not in LLTL (-0.7%), and remained significantly reduced at Post-2 (-3.5%, P < 0.001) in LHTLH only. Vertical jump performance did not change.
CONCLUSIONS: "Live high-train low and high" hypoxic training interspersed with repeated sprints in hypoxia for 14 d (in season) increases the Hbmass, YYIR2 performance, and repeated-sprint ability of elite field team-sport players, with benefits lasting for at least 3 wk postintervention.
Mots-clé
Adaptation, Physiological, Adult, Altitude, Anoxia, Athletic Performance/physiology, Double-Blind Method, Heart Rate, Hockey/physiology, Humans, Male, Oxyhemoglobins/metabolism, Physical Education and Training/methods, Young Adult
Pubmed
Web of science
Création de la notice
24/09/2015 9:50
Dernière modification de la notice
20/08/2019 15:28
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