Effects of a caffeine-containing energy drink on simulated soccer performance

To investigate the effects of a caffeine-containing energy drink on soccer performance during a simulated game. A second purpose was to assess the post-exercise urine caffeine concentration derived from the energy drink intake. Nineteen semiprofessional soccer players ingested 630 ± 52 mL of a comme...

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Bibliographic Details
Published in:PloS one 2012-02, Vol.7 (2), p.e31380-e31380
Main Authors: Del Coso, Juan, Muñoz-Fernández, Víctor E, Muñoz, Gloria, Fernández-Elías, Valentín E, Ortega, Juan F, Hamouti, Nassim, Barbero, José C, Muñoz-Guerra, Jesús
Format: Article
Language:English
Subjects:
Analysis
Athletic Performance
Biology
Body mass
Caffeine
Caffeine - pharmacology
Caffeine - urine
Coffee
Endurance
Energy Drinks
Exercise physiology
Games
Global positioning systems
GPS
Headers
Humans
Ingestion
Laboratories
Medicine
Metabolism
Musculoskeletal system
Oxidation
Oxidative stress
Physical fitness
Physical training
Rodents
Rowing
Running
Satellite navigation systems
Satellites
Simulation
Soccer
Soccer - physiology
Soccer players
Sports drinks
Student athletes
Sugar
Urine
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Summary:To investigate the effects of a caffeine-containing energy drink on soccer performance during a simulated game. A second purpose was to assess the post-exercise urine caffeine concentration derived from the energy drink intake. Nineteen semiprofessional soccer players ingested 630 ± 52 mL of a commercially available energy drink (sugar-free Red Bull®) to provide 3 mg of caffeine per kg of body mass, or a decaffeinated control drink (0 mg/kg). After sixty minutes they performed a 15-s maximal jump test, a repeated sprint test (7 × 30 m; 30 s of active recovery) and played a simulated soccer game. Individual running distance and speed during the game were measured using global positioning satellite (GPS) devices. In comparison to the control drink, the ingestion of the energy drink increased mean jump height in the jump test (34.7 ± 4.7 v 35.8 ± 5.5 cm; P
ISSN:1932-6203
1932-6203
DOI:10.1371/journal.pone.0031380