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Caffeine supplement...
Caffeine supplementation does not affect match activities and fatigue resistance during match play in young football players
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Pettersen, S. A. (författare)
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Krustrup, P. (författare)
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Bendiksen, M. (författare)
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Randers, M. B. (författare)
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Brito, J. (författare)
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Bangsbo, J. (författare)
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Jin, Y. (författare)
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- Mohr, Magni, 1973 (författare)
- Gothenburg University,Göteborgs universitet,Institutionen för kost- och idrottsvetenskap,Department of Food and Nutrition, and Sport Science
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(creator_code:org_t)
- 2014-10-30
- 2014
- Engelska.
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Ingår i: Journal of Sports Sciences. - : Informa UK Limited. - 0264-0414 .- 1466-447X. ; 32:20, s. 1958-1965
- Relaterad länk:
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https://munin.uit.no...
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https://gup.ub.gu.se...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- The study examined the effect of caffeine supplementation on match activities and development of fatigue during a football match. In a randomised, double-blind cross-over design, two experimental football games separated by 7days were organised between the junior teams of two professional football clubs (17.6 +/- 1.1years (+/- s), 71.7 +/- 6.9kg, 13.9%+/- 5.0% body fat). The players ingested either a capsule of 6mg center dot kg(-1)b.w. caffeine or placebo (dextrose) 65min prior to the matches. Match activities were assessed using the ZXY match analysis system, and a Yo-Yo intermittent recovery test-level 2 (Yo-Yo IR2) was conducted immediately post-game. Heart rate was monitored throughout the game, and blood samples were obtained at baseline, half-time and after the game. There were no differences between caffeine and placebo regarding total distance covered (10,062 +/- 916 vs 9854 +/- 901m), high-intensity running (557 +/- 178 vs 642 +/- 240m), sprinting distance (109 +/- 58 vs 112 +/- 69m) or acceleration counts (123 +/- 31 vs 126 +/- 24). In both trials, players displayed lower (P<0.05) values in total distance and acceleration counts in the last 15min compared to all other 15-min periods of the matches. Post-game Yo-Yo IR2 performance was not different between game trials (caffeine: 829 +/- 322m; placebo 819 +/- 289m). In conclusion, oral caffeine administration does not appear to have an ergogenic effect in young football players during match play.
Ämnesord
- MEDICIN OCH HÄLSOVETENSKAP -- Medicinska och farmaceutiska grundvetenskaper -- Fysiologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Basic Medicine -- Physiology (hsv//eng)
- MEDICIN OCH HÄLSOVETENSKAP -- Hälsovetenskap -- Idrottsvetenskap (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Health Sciences -- Sport and Fitness Sciences (hsv//eng)
Nyckelord
- match analysis
- Yo-Yo IR2 test
- blood lactate
- intermittent exercise performance
- soccer
- ergogenic
- INTERMITTENT EXERCISE PERFORMANCE
- PREMIER LEAGUE SOCCER
- ELITE FEMALE
- SOCCER
- MUSCLE FATIGUE
- PHYSIOLOGICAL-RESPONSE
- SPRINT PERFORMANCE
- SPORT
- METABOLISM
- PATTERNS
- GAME
- Sport Sciences
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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