Football-induced fatigue in hypoxia impairs repeated sprint ability and perceptual-cognitive skills
Purpose:Investigate football-induced fatigue during hypoxia on RS and perceptual-cognitive skills.
Methods: Ten semi-professional footballers underwent a control session (0-m) to quantify RS in a non-fatigued state; and three hypoxia sessions (0-m;1500-m;3000-m) examining RS and perceptual-cognitive skills for a given physical workload. The mean number of correct responses (%) for anticipation and decision-making accuracy were obtained at the 30-min mark of each half. HR, TC, RPE and %O2sat were measured during warm-up, football-induced fatigue and RS test.
Results: HR, RPE and %O2sat were different between conditions (ES=0.44-6.13). RS were affected by football-induced fatigue for DC (4.8%;ES=0.68) and AV (5.5%;ES=0.79). In hypoxia, a 6.5% was found for DC, 6.3% for AV and 3.1% for PV at 1500-m compared to 0-m (P<0.05). Further significant changes of 12.8% DC, 12.8% AV and 6.2% PV (P<0.0005) were found at 3000-m compared to 0-m. More pronounced declines in perceptual-cognitive skills were found as altitude increased (5.0-12.5%;ES=1.17-2.41) and between halves (5.3-6.7%).
Conclusion: The data demonstrates the RS test was sensitive to fatigue/hypoxia for a given physical load. Simulated matches in hypoxia revealed larger decreases, in RS and perceptual-cognitive skills, highlighting the need for optimal acclimatisation strategies, including physical and technical preparation, prior to playing at altitude.
© Copyright 2019 Science and Medicine in Football. Taylor & Francis. Kaikki oikeudet pidätetään.
Aiheet: | jalkapallo urheilija analyysi uupumus stressi kuormitus kuormitusintensiteetti happivaje tajunta havainto |
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Aihealueet: | urheilukilpailut biologiset ja lääketieteelliset tieteet valmennusoppi |
DOI: | 10.1080/24733938.2019.1591633 |
Julkaisussa: | Science and Medicine in Football |
Julkaistu: |
2019
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Vuosikerta: | 3 |
Numero: | 3 |
Sivuja: | 221-230 |
Julkaisutyypit: | artikkeli |
Kieli: | englanti (kieli) |
Taso: | kehittynyt |