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Phosphatidylserine, Taurine, and Caffeine for Cognitive Fatigue in Professional Football Players
Sponsor: Vizja University in Warsaw
Summary
This randomized, double-blind, placebo-controlled, parallel-group trial evaluated neurocognitive fatigue resistance and football-specific decision-making following 28 days of taurine-caffeine supplementation with or without phosphatidylserine in professional male football players. Sixty-five male outfield football players from two professional clubs were randomized to placebo, taurine plus caffeine, or taurine plus caffeine plus phosphatidylserine. Neurocognitive fatigue resistance was evaluated during a standardized high-load Stroop/Flanker task, while football-specific tactical decision-making, visual-search behavior, and field-based reactive decision performance were assessed at baseline and after 28 days of supplementation.
Official title: Neurocognitive Fatigue Resistance, Visual Search Efficiency, and Tactical Decision-Making After Phosphatidylserine-Containing Taurine-Caffeine Supplementation in Professional Male Football Players
Key Details
Gender
MALE
Age Range
18 Years - 37 Years
Study Type
INTERVENTIONAL
Enrollment
65
Start Date
2026-08-06
Completion Date
2026-09-08
Last Updated
2026-09-14
Healthy Volunteers
Yes
Interventions
Placebo
Inert placebo matched with the active supplements for appearance, number of units, and packaging. The placebo will be administered for 28 days.
Taurine Plus Caffeine
Taurine 1500 mg/day plus caffeine 200 mg/day administered for 28 days. On training and testing days, the supplement will be consumed approximately 60 minutes before the main training session or testing procedure. On non-training days, it will be consumed at a consistent morning time.
Taurine, Caffeine, and Phosphatidylserine
Taurine 1500 mg/day plus caffeine 200 mg/day plus phosphatidylserine 600 mg/day administered for 28 days. On training and testing days, the supplement will be consumed approximately 60 minutes before the main training session or testing procedure. On non-training days, it will be consumed at a consistent morning time.
Locations (2)
Professional Football Training Center
Lodz, Poland
Professional Football Training Center
Warsaw, Poland