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Caffeine supplementation improves countermovement jump in youth soccer players: a pilot study
Abstract
Introduction: The objective of this study was to analyze the effect of caffeine ingestion in soccer performance, particularly in the countermovement jump test (CMJ).Material and methods: A total of 17 players from a U-19 amateur Spanish team participated in this pilot study. A double-blind placebo-controlled randomized experimental design was used in 2 different sessions (1.5 hour per session) separated by 1 week. CMJ was collected at the beginning and at the end of sessions; Rating of Perceived Exertion (RPE) was recorded. Players ingested caffeine or placebo at the beginning of session (minute 0 of session), providing a total of 4 mg of caffeine or a placebo per kg of body mass. Side effects from caffeine and placebo ingestions were analyzed. The effect sizes (ES) were calculated using values for Cohen’s and Quantitative differences were assessed qualitatively (QA).Results: The jump height with caffeine supplementation at the beginning of training was 37.03 (±3.87) cm and at the end was 39.35 (±4.05) cm, obtaining significant improvements (p<0.05; ES: 0.56; QA: 99/1/0). Significant differences on CMJ at the end of the training session between caffeine and placebo groups were observed (39.35 [±4.05] cm vs. 36.85 [±3.15] cm; p<0.05; ES: 0.65; QA: 0/1/99). Significant differences on RPE between groups were observed. A non-significant tendency to suffer more side effects with caffeine ingestion was obtained.Conclusions: This study shows how the ingestion of 4 mg of caffeine per kg of body mass could be an ergogenic aid to improve soccer performance. However, further studies with bigger soccer players sample would be necessary to refute the present results.
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“an experimental study of young football players aged 17 years concluded that consumption of caffeine supplementation (4 mg/kg body weight) enhances the jumping skills of football players (45).”
From Junior athletes’ nutritional demands: a narrative review of consumption and prevalence of eating disorders (2024) · cites this paper as [45]
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Caffeine enhances cognitive function and skill performance during simulated soccer activity
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Effects of a Caffeine-Containing Energy Drink on Simulated Soccer Performance
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Del Coso, J., Salinero, J. J., González-Millán, C., Abián-Vicén, J., & Pérez-González, B. (2012) · Journal of the International Society of Sports Nutrition · doi:10.1186/1550-2783-9-21 · Cited by 138
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Cited by
Ferreira, R. E. S., Pacheco, R. L., de Oliveira Cruz Latorraca, C., Riera, R., Eid, R. G., & Martimbianco, A. L. C. (2021) · Sports Health: A Multidisciplinary Approach · doi:10.1177/1941738121998712 · Cited by 27
Amawi, A., Khataybeh, B., Al Aqaili, R., Ababneh, N., Alnimer, L., Qoqazeh, A., Oukal, F., Jahrami, H., Mousa Ay, K., Al Saoud, H., et al. (2024) · Frontiers in Nutrition · doi:10.3389/fnut.2024.1390204 · Cited by 26
Metadata
- Authors
- Hernández-Camacho, J. D., Vázquez-Carrión, J., Fuentes-Lorca, E., & Moya-Amaya, H.
- Venue
- Revista Española de Nutrición Humana y Dietética
- Published
- 2017-07-24
- Volume
- 21
- Issue
- 2
- Pages
- 155-163
- ISSN
- 2174-5145
- 2173-1292
- Cited by
- 8
- References
- 4
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