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Effects of Supplementation on Performance in Football Players (FOOTBALL-TCP)

21 maj 2026 uppdaterad av: Krzysztof Mizera

Effects of Combined Taurine, Caffeine, and Phosphatidylserine Supplementation on Physical and Cognitive Performance in Professional Male Football Players

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.

Studieöversikt

Status

Avslutad

Betingelser

Intervention / Behandling

Detaljerad beskrivning

This randomized, placebo-controlled, single-blind study evaluated the effects of combined supplementation with taurine, caffeine, and phosphatidylserine on physical and cognitive performance in professional male football players.

Eighty-one participants aged 19-32 years were randomly assigned to one of three groups: placebo (lactose), taurine plus caffeine (1500 mg taurine + 200 mg caffeine), or taurine plus caffeine plus phosphatidylserine (1500 mg taurine + 150 mg caffeine + 300 mg phosphatidylserine daily for 10 days). All participants completed a 10-day supplementation period, followed by a standardized 105-minute football training session.

Outcome measures included sprint performance (30 m sprint time), reaction time (visual and auditory), GPS-derived variables (total distance, sprint activity, speed, accelerations, and decelerations), and technical and tactical performance indicators assessed by coaching staff and video analysis.

The study was conducted under controlled environmental conditions and in accordance with standardized training procedures. Data were analyzed using analysis of variance (ANOVA) with post hoc testing. The aim was to determine whether multi-ingredient supplementation could enhance performance and reduce fatigue-related declines in a football-specific setting.

Studietyp

Interventionell

Inskrivning (Faktisk)

81

Fas

  • Inte tillämpbar

Kontakter och platser

Det här avsnittet innehåller kontaktuppgifter för dem som genomför studien och information om var denna studie genomförs.

Studieorter

  • Polen
    • Łódżkie
      • Lodz, Łódżkie, Polen, 94-020
        • ŁKS Łódź

Deltagandekriterier

Forskare letar efter personer som passar en viss beskrivning, så kallade behörighetskriterier. Några exempel på dessa kriterier är en persons allmänna hälsotillstånd eller tidigare behandlingar.

Urvalskriterier

Åldrar som är berättigade till studier

  • Vuxen

Tar emot friska volontärer

Ja

Beskrivning

Inclusion Criteria:

  • Male professional football (soccer) players
  • Age 19-32 years
  • Currently participating in regular team training (4-5 sessions per week)
  • Medically cleared for participation in high-intensity physical activity
  • Provided written informed consent

Exclusion Criteria:

  • Current injury or musculoskeletal condition affecting performance
  • Chronic disease or medical condition
  • Use of medications that may affect physical or cognitive performance
  • Regular use of dietary supplements or caffeine prior to the study period
  • Smoking or alcohol consumption
  • Failure to comply with study procedures

Studieplan

Det här avsnittet ger detaljer om studieplanen, inklusive hur studien är utformad och vad studien mäter.

Hur är studien utformad?

Designdetaljer

  • Primärt syfte: Grundläggande vetenskap
  • Tilldelning: Randomiserad
  • Interventionsmodell: Parallellt uppdrag
  • Maskning: Dubbel

Vapen och interventioner

Deltagargrupp / Arm
Intervention / Behandling
Placebo-jämförare: Placebo
Participants received a placebo (lactose) daily for 10 days.
Övrig: Placebo
Placebo (lactose) administered daily for 10 days
Experimentell: Taurine + Caffeine
Participants received taurine (1500 mg) and caffeine (200 mg) daily for 10 days.
Kosttillskott: Taurine and Caffeine
Taurine 1500 mg and caffeine 200 mg administered daily for 10 days
Experimentell: Taurine + Caffeine + PS
Participants received taurine (1500 mg), caffeine (150 mg), and phosphatidylserine (300 mg) daily for 10 days.
Kosttillskott: Taurine, Caffeine, and Phosphatidylserine
Taurine 1500 mg, caffeine 150 mg, and phosphatidylserine 300 mg administered daily for 10 days

Vad mäter studien?

Primära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
30 m sprint time (seconds)
Tidsram: Day 10 (final training session following supplementation)
Time to complete a 30 meter sprint under standardized conditions, expressed in seconds; calculated as the mean of valid trials.
Day 10 (final training session following supplementation)

Sekundära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
Reaction time (visual and auditory)
Tidsram: Day 10 (post-supplementation)
Visual and auditory reaction time measured using standardized computerized reaction time tests (e.g., validated software-based assessment tools), expressed as mean response time in seconds across valid trials.
Day 10 (post-supplementation)
Total distance (meters)
Tidsram: Day 10 (during standardized training session)
Total distance covered during the standardized training session, measured using GPS tracking devices (e.g., 10 Hz GPS units), expressed in meters.
Day 10 (during standardized training session)
Running speed (m/s)
Tidsram: Day 10 (during standardized training session)
Mean running speed during the standardized training session, measured using GPS tracking devices (e.g., 10 Hz GPS units), expressed in meters per second.
Day 10 (during standardized training session)
Sprint count (number)
Tidsram: Day 10 (during standardized training session)
Total number of sprint efforts recorded during the standardized training session using GPS tracking devices.
Day 10 (during standardized training session)
High-speed running distance (meters)
Tidsram: Day 10 (during standardized training session)
Distance covered at high-speed running thresholds during the standardized training session, measured using GPS tracking and expressed in meters.
Day 10 (during standardized training session)

Andra resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
Sprint time decline (%)
Tidsram: Day 10 (during final training session; comparison between first and second halves)
Percentage decline in 30 m sprint time between the first and second halves of the standardized training session, measured using electronic timing gates and expressed as percentage change.
Day 10 (during final training session; comparison between first and second halves)
Running speed decline (%)
Tidsram: Day 10 (during final training session; comparison between first and second halves)
Percentage decline in running speed between the first and second halves of the standardized training session, measured using GPS tracking devices and expressed as percentage change.
Day 10 (during final training session; comparison between first and second halves)
Passing accuracy (%)
Tidsram: Day 10 (during standardized training session)
Percentage of successful passes during the standardized training session, assessed using video-based performance analysis and expressed as a percentage.
Day 10 (during standardized training session)
Dribbling success (%)
Tidsram: Day 10 (during standardized training session)
Percentage of successful dribbling attempts during the standardized training session, assessed using video-based performance analysis and expressed as a percentage.
Day 10 (during standardized training session)
Ball recoveries (number)
Tidsram: Day 10 (during standardized training session)
Total number of ball recoveries performed during the standardized training session, assessed using video-based performance analysis and expressed as a count.
Day 10 (during standardized training session)
Tactical performance score (units)
Tidsram: Day 10 (during standardized training session)
Coach-rated tactical performance during the standardized training session, including positioning, decision-making, and support play, assessed using a standardized rating scale and expressed in standardized score units.
Day 10 (during standardized training session)

Samarbetspartners och utredare

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Sponsor

Krzysztof Mizera

Utredare

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

Studieavstämningsdatum

Dessa datum spårar framstegen för inlämningar av studieposter och sammanfattande resultat till ClinicalTrials.gov. Studieposter och rapporterade resultat granskas av National Library of Medicine (NLM) för att säkerställa att de uppfyller specifika kvalitetskontrollstandarder innan de publiceras på den offentliga webbplatsen.

Studera stora datum

Studiestart (Faktisk)

25 mars 2025

Primärt slutförande (Faktisk)

5 april 2025

Avslutad studie (Faktisk)

5 april 2025

Studieregistreringsdatum

Först inskickad

28 april 2026

Först inskickad som uppfyllde QC-kriterierna

5 maj 2026

Första postat (Faktisk)

12 maj 2026

Uppdateringar av studier

Senaste uppdatering publicerad (Faktisk)

26 maj 2026

Senaste inskickade uppdateringen som uppfyllde QC-kriterierna

21 maj 2026

Senast verifierad

1 maj 2026

Mer information

Termer relaterade till denna studie

Nyckelord

Ytterligare relevanta MeSH-villkor

Andra studie-ID-nummer

  • MIZERA-2025-FOOTBALL-RCT

Plan för individuella deltagardata (IPD)

Planerar du att dela individuella deltagardata (IPD)?

NEJ

IPD-planbeskrivning

Individual participant data will not be publicly available due to confidentiality restrictions related to professional athletes. Data may be available from the corresponding author upon reasonable request.

Läkemedels- och apparatinformation, studiedokument

Studerar en amerikansk FDA-reglerad läkemedelsprodukt

Nej

Studerar en amerikansk FDA-reglerad produktprodukt

Nej

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