Repeated sprint training in normobaric hypoxia

Journal article


Cooke, K, Galvin, HM, Sumners, DP, Mileva, KN and Bowtell, JL (2013). Repeated sprint training in normobaric hypoxia. British Journal of Sports Medicine. 47, pp. i74-i79.
AuthorsCooke, K, Galvin, HM, Sumners, DP, Mileva, KN and Bowtell, JL
Abstract

Repeated sprint ability (RSA) is a critical success factor for intermittent sport performance. Repeated sprint training has been shown to improve RSA, we hypothesised that hypoxia would augment these training adaptations. Thirty male well-trained academy rugby union and rugby league players (18.4±1.5 years, 1.83±0.07 m, 88.1±8.9 kg) participated in this singleblind repeated sprint training study. Participants completed 12 sessions of repeated sprint training (10×6 s, 30 s recovery) over 4 weeks in either hypoxia (13% Fi,O2) or normoxia (21% Fi,O2). Pretraining and post-training, participants completed sports specific endurance and sprint field tests and a 10×6 s RSA test on a non-motorised treadmill while measuring speed, heart rate, capillary blood lactate, muscle and cerebral deoxygenation and respiratory measures. Yo-Yo Intermittent Recovery Level 1 test performance improved after RS training in both groups, but gains were significantly greater in the hypoxic (33±12%) than the normoxic group (14±10%, p<0.05). During the 10×6 s RS test there was a tendency for greater increases in oxygen consumption in the hypoxic group (hypoxic 6.9±9%, normoxic (-0.3±8.8%, p=0.06) and reductions in cerebral deoxygenation (% changes for both groups, p=0.09) after hypoxic than normoxic training. Twelve RS training sessions in hypoxia resulted in twofold greater improvements in capacity to perform repeated aerobic high intensity workout than an equivalent normoxic training. Performance gains are evident in the short term (4 weeks), a period similar to a preseason training block.

KeywordsMuscle, Skeletal; Humans; Hypoxia, Brain; Carbon Dioxide; Oxyhemoglobins; Single-Blind Method; Oxygen Consumption; Heart Rate; Exhalation; Running; Football; Adolescent; Male; Hypoxia
Year2013
JournalBritish Journal of Sports Medicine
Journal citation47, pp. i74-i79
ISSN0306-3674
Digital Object Identifier (DOI)doi:10.1136/bjsports-2013-092826
Publication dates
Print26 Nov 2013
Publication process dates
Deposited29 Jan 2019
Accepted03 Sep 2013
Publisher's version
License
CC BY 4.0
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https://openresearch.lsbu.ac.uk/item/878v1

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