%0 Journal Article %T Effects of repeated-sprint training in hypoxia induced by voluntary hypoventilation on performance during ice hockey off-season %+ French Institute of Sport (INSEP), Laboratory Sport, Expertise and Performance (EA7370) (SEP (EA7370)) %+ Institute of Sport Sciences of University of Lausanne (ISSUL) %+ Unité de Recherche Pluridisciplinaire Sport, Santé, Société (URePSSS) - ULR 7369 - ULR 4488 (URePSSS) %A Brocherie, Franck %A Cantamessi, Gregory %A Millet, Grégoire %A Woorons, Xavier %< avec comité de lecture %@ 1747-9541 %J International journal of Sports Science and Coaching %I Multi-Science Publishing %V 18 %N 2 %P 446-452 %8 2023-04 %D 2023 %R 10.1177/17479541221079531 %Z Life Sciences [q-bio] %Z Humanities and Social Sciences/Sport/Sport physiologyJournal articles %X This study aimed to assess the effects of an off-season period of repeated-sprint training in hypoxia induced by voluntary hypoventilation at low lung volume (RSH-VHL) on off-ice repeated-sprint ability (RSA) in ice hockey players. Thirty-five high-level youth ice hockey players completed 10 sessions of running repeated sprints over a 5-week period, either with RSH-VHL (n = 16) or with unrestricted breathing (RSN, n = 19). Before (Pre) and after (Post) the training period, subjects performed two 40-m single sprints (to obtain the reference velocity (V ref )) followed by a running RSA test (12 × 40 m all-out sprints with departure every 30 s). From Pre to Post, there was no change in V ref or in the maximal velocity reached in the RSA test in both groups. In RSH-VHL, the mean velocity of the RSA test was higher (88.9 ± 5.4 vs. 92.9 ± 3.2% of V ref ; p < 0.01) and the percentage decrement score lower (11.1 ± 5.2 vs. 7.1 ± 3.3; p < 0.01) at Post than at Pre whereas no significant change occurred in the RSN group (89.6 ± 3.3 vs. 91.3 ± 1.9% of V ref , p = 0.11; 10.4 ± 3.2 vs. 8.7 ± 2.3%; p = 0.13). In conclusion, five weeks of off-ice RSH-VHL intervention led to a significant 4% improvement in off-ice RSA performance. Based on previous findings showing larger effects after shorter intervention time, the dose-response dependent effect of this innovative approach remains to be investigated. %G English %L hal-04067152 %U https://insep.hal.science//hal-04067152 %~ SHS %~ UNIV-ARTOIS %~ UNIV-LITTORAL %~ INSEP %~ UNIV-LILLE %~ UREPSSS