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Effects of Supplementation on Performance in Football Players

NCT07580248 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 81

Last updated 2026-05-26

No results posted yet for this study

Summary

This study investigated the effects of short-term supplementation with taurine, caffeine, and phosphatidylserine on physical and cognitive performance in professional male football players. Eighty-one players were randomly assigned to one of three groups: placebo, taurine plus caffeine, or taurine plus caffeine combined with phosphatidylserine. Supplementation was administered for 10 days, with a final dose taken 60 minutes before a standardized 105-minute football training session.

Primary and secondary outcomes included sprint performance, reaction time, GPS-derived locomotor variables, and technical and tactical performance indicators. The aim of the study was to evaluate whether combined multi-ingredient supplementation could improve performance and attenuate fatigue-related declines under match-like conditions.

Conditions

  • Physical Performance
  • Cognitive Performance

Interventions

OTHER

Placebo

Placebo (lactose) administered daily for 10 days

DIETARY_SUPPLEMENT

Taurine and Caffeine

Taurine 1500 mg and caffeine 200 mg administered daily for 10 days

DIETARY_SUPPLEMENT

Taurine, Caffeine, and Phosphatidylserine

Taurine 1500 mg, caffeine 150 mg, and phosphatidylserine 300 mg administered daily for 10 days

Sponsors & Collaborators

  • Krzysztof Mizera

    lead OTHER

Principal Investigators

  • Krzysztof Maciej MIZERA, PhD · 1. Vizja University in Warsaw, Faculty of Medical Sciences and Health Sciences, 01-143 Warsaw, Poland

Study Design

Allocation
RANDOMIZED
Purpose
BASIC_SCIENCE
Masking
DOUBLE
Model
PARALLEL

Eligibility

Min Age
19 Years
Max Age
32 Years
Sex
MALE
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2025-03-25
Primary Completion
2025-04-05
Completion
2025-04-05

Countries

  • Poland

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07580248 on ClinicalTrials.gov