| Beneficial effect of caffeine intake on team-sport performance |
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Eleven male rugby players ingested either caffeine (6 mg/kg) or placebo 70 min before performing a simulated intense team-sport performance.
After caffeine intake 20-m sprint speed, power generation in a drive and passing accuracy improved by 1, 5 and 10%, respectively. These changes were associated with a 50% increase in mean plasma epinephrine concentration. Thus, caffeine produced marked enhancements of several aspects of intermittent high-intensity team performance. Recommendations: Soccer players may benefit from ingesting caffeine about 1 h before a game. Stuart GR, Hopkins WG, Cook C, Cairns SP.
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