About this trial
This randomized, double-blind, placebo-controlled, parallel-group trial will evaluate the effects of 14 days of taurine-caffeine supplementation with or without phosphatidylserine on neurocognitive fatigue resistance, visual search efficiency, and football-specific tactical decision-making in professional male football players. Sixty-two male outfield football players from two professional clubs will be randomized to placebo, taurine plus caffeine, or taurine plus caffeine plus phosphatidylserine. Laboratory and field-based outcomes will be assessed at baseline and after the supplementation period.
Eligibility criteria
Qualifiers
Male professional outfield football players aged 18 to 37 years.
First-team players or selected U19 players aged 18 years or older who are regularly integrated into first-team training.
Regular participation in club training.
At least 5 years of systematic football training experience.
Disqualifiers
Goalkeepers.
Current injury or illness limiting full participation in testing.
Neurological disease.
Recent concussion or head trauma.
Trial design
Treatments tested in this trial
- Placebo
- Taurine Plus Caffeine
- Taurine, Caffeine, and Phosphatidylserine