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Football-induced fatigue in hypoxia impairs repeated sprint ability and perceptual-cognitive skills

Pullinger, S, Bradley, PS, Causer, J, Ford, PR, Patel, K, Reid, K, Newlove, A, Robertson, CM, Burniston, JG, Doran, DA, Waterhouse, JM and Edwards, BJ (2019) Football-induced fatigue in hypoxia impairs repeated sprint ability and perceptual-cognitive skills. Science and Medicine in Football, 3 (3). pp. 221-230. ISSN 2473-3938

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The present study investigated the effects of football-induced fatigue during hypoxia on RS and perceptual-cognitive skills. Ten male semi-professional football players underwent four sessions; a control session (0-m) to quantify RS in a non-fatigued state; and three further sessions at hypoxia (0-m;1500-m;3000-m) examining RS and perceptual-cognitive skill responses for a given physical workload. Anticipation and decision-making accuracy were obtained at the 30-min mark of each half. The mean number of trials (%) in which the player made the correct response was used for analysis. HR, TC, RPE and % saturation of O2 were measured during the warm-up, football-induced fatigue and RS test. It was found that HR, RPE and % saturation of O2 were different between conditions (P<0.05; ES=0.44-6.13). Further, RS were affected by football-induced fatigue for DC (4.8%; P=0.019; ES=0.68) and AV (5.5%; P=0.006; ES=0.79). In hypoxia, it was observed that football-induced fatigue decreased by 6.5% in DC, 6.3% in AV and 3.1% in PV at 1500-m compared to 0-m (P<0.05). Further significant changes were found at 3000-m compared to 0-m decreasing 12.8% in DC, 12.8% in AV and 6.2% in PV (P<0.0005). More pronounced declines in perceptual-cognitive skills were found as altitude increased (5.0-12.5 %; P<0.05; ES=1.17-2.41) and between both halves (5.3-6.7 %; P<0.05). The data demonstrates that the RS test was highly sensitive to fatigue and hypoxia for a given physical load. Simulated matches in hypoxia revealed larger decreases, when compared to normoxia in RS and perceptual-cognitive skills, highlighting the need for optimal acclimatisation strategies, including physical and technical preparation, prior to playing at

Item Type: Article
Additional Information: This is an Accepted Manuscript of an article published by Taylor & Francis in Science and Medicine in Football on 20/03/2019, available online: http://www.tandfonline.com/10.1080/24733938.2019.1591633
Subjects: R Medicine > RC Internal medicine > RC1200 Sports Medicine
Divisions: Sport & Exercise Sciences
Publisher: Taylor and Francis
Date Deposited: 13 Mar 2019 11:36
Last Modified: 04 Sep 2021 09:38
DOI or Identification number: 10.1080/24733938.2019.1591633
URI: https://researchonline.ljmu.ac.uk/id/eprint/10309

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