Repeated sprint training in normobaric hypoxia
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.
|Authors||Cooke, K, Galvin, HM, Sumners, DP, Mileva, KN and Bowtell, JL|
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.
|Keywords||Muscle, Skeletal; Humans; Hypoxia, Brain; Carbon Dioxide; Oxyhemoglobins; Single-Blind Method; Oxygen Consumption; Heart Rate; Exhalation; Running; Football; Adolescent; Male; Hypoxia|
|Journal||British Journal of Sports Medicine|
|Journal citation||47, pp. i74-i79|
|Digital Object Identifier (DOI)||doi:10.1136/bjsports-2013-092826|
|26 Nov 2013|
|Publication process dates|
|Deposited||29 Jan 2019|
|Accepted||03 Sep 2013|
CC BY 4.0
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