- ICH GCP
- USA klinikai vizsgálatok nyilvántartása
- Klinikai vizsgálat NCT07641335
Effects of Caffeine on Chess Performance and Cognitive Function in Professional Chess Players (GRANDMASTER)
GRANDMASTER: Gauging the Role of Alertness and Neurostimulation With Dietary Caffeine in Master-Level Chess; A Double-Blind Randomized Crossover Trial
A tanulmány áttekintése
Állapot
Körülmények
Beavatkozás / kezelés
Részletes leírás
This randomized double-blind crossover trial will evaluate the effects of moderate caffeine intake on cognitive and competitive performance in professional chess players. Twelve FIDE-rated chess players will complete two experimental conditions in randomized order: caffeinated coffee and decaffeinated coffee placebo. During each visit, participants will complete standardized cognitive assessments and a tournament-style chess game under controlled laboratory conditions.
Primary outcomes will include objective chess performance metrics derived from chess engine analysis, including move accuracy, centipawn loss, error rates, and time management. Secondary outcomes will include cognitive test performance, tactical reaction time, and self-reported alertness and fatigue. Chess games will be analyzed using standardized software-based evaluation methods.
The crossover design allows each participant to serve as their own control, minimizing variability related to individual differences in skill level, caffeine tolerance, and playing style. The study aims to determine whether caffeine enhances sustained attention, decision-making, and competitive chess performance during prolonged gameplay. Findings may provide insight into nutritional strategies for cognitive performance optimization in mentally demanding competitive environments.
Tanulmány típusa
Beiratkozás (Becsült)
Fázis
- Nem alkalmazható
Kapcsolatok és helyek
Tanulmányi kapcsolat
- Név: Hossein Rafiei, PhD
- Telefonszám: 13149778675
- E-mail: hossein.rafiei@health.slu.edu
Tanulmányi helyek
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Missouri
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St Louis, Missouri, Egyesült Államok, 63104
- Saint Louis University
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Kapcsolatba lépni:
- Hossein Rafiei, PhD
- Telefonszám: 1314-977-8675
- E-mail: hossein.rafiei@health.slu.edu
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Kutatásvezető:
- Hossein Rafiei, PhD
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Részvételi kritériumok
Jogosultsági kritériumok
Tanulmányozható életkorok
- Felnőtt
Egészséges önkénteseket fogad
Leírás
Inclusion Criteria:
- Male and female professional chess players aged 18-50 years
- Current Fédération Internationale des Échecs (FIDE) standard rating between 2300 and 2600 Elo, or achievement of a standard FIDE rating within this range during the previous 12 months
- Habitual caffeine consumers consuming ≤2 cups of coffee per day
- Willingness to comply with all study procedures and study visits
- Ability to provide written informed consent
Exclusion Criteria:
- Non-caffeine users
- Habitual caffeine intake exceeding 2 cups of coffee per day
- Cardiovascular disorders
- Metabolic disorders
- Psychiatric disorders
- Pregnancy or breastfeeding
- Current smoking
- Shift workers
- Use of psychoactive medications
- Participation in another clinical trial within the previous 3 months
- Known allergy or intolerance to milk proteins, dairy products, or soy
- Known red-green color blindness or other color vision deficiencies that may interfere with Stroop Test performance
Tanulási terv
Hogyan készül a tanulmány?
Tervezési részletek
- Elsődleges cél: Alapvető tudomány
- Kiosztás: Véletlenszerűsített
- Beavatkozó modell: Crossover kiosztás
- Maszkolás: Hármas
Fegyverek és beavatkozások
Résztvevő csoport / kar |
Beavatkozás / kezelés |
|---|---|
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Aktív összehasonlító: Caffeinated Coffee
Participants will consume one serving of black caffeinated coffee prepared from 15 g of ground coffee brewed in 200 g of water, providing approximately 100 mg of caffeine.
The beverage will be consumed approximately 30 minutes before completion of cognitive testing and a standardized tournament-style chess game during the experimental visit.
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Black caffeinated coffee prepared from 15 g of ground coffee brewed in 200 g of water, providing approximately 100 mg of caffeine.
The beverage will be consumed approximately 30 minutes before cognitive testing and tournament-style chess gameplay.
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Placebo Comparator: Decaffeinated Coffee Placebo
Participants will consume one serving of black decaffeinated coffee prepared to match the caffeinated coffee in taste and appearance.
The beverage will be consumed approximately 30 minutes before completion of cognitive testing and a standardized tournament-style chess game during the experimental visit.
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Black decaffeinated coffee prepared from the same batch of coffee beans and matched for taste and appearance to the caffeinated condition.
The beverage will be consumed approximately 30 minutes before cognitive testing and tournament-style chess gameplay.
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Mit mér a tanulmány?
Elsődleges eredményintézkedések
Eredménymérő |
Intézkedés leírása |
Időkeret |
|---|---|---|
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Chess Performance Accuracy
Időkeret: 30 minutes after beverage consumption through completion of the tournament-style chess game at each experimental visit.
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Chess performance accuracy will be assessed using engine-based analysis of tournament-style chess games.
The primary reported metric will be average centipawn loss per move, with lower values indicating better chess performance accuracy.
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30 minutes after beverage consumption through completion of the tournament-style chess game at each experimental visit.
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Másodlagos eredményintézkedések
Eredménymérő |
Intézkedés leírása |
Időkeret |
|---|---|---|
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Puzzle Rush Correct Responses
Időkeret: Approximately 30 minutes after beverage consumption at each experimental visit.
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Tactical accuracy will be assessed using the 3-minute Puzzle Rush task on Chess.com.
The outcome will be the total number of correctly solved tactical puzzles, with higher scores indicating better tactical accuracy.
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Approximately 30 minutes after beverage consumption at each experimental visit.
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Puzzle Rush Response Speed
Időkeret: Approximately 30 minutes after beverage consumption at each experimental visit.
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Response speed will be assessed using the 3-minute Puzzle Rush task on Chess.com.
The outcome will be average response time per puzzle, with lower values indicating faster response speed.
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Approximately 30 minutes after beverage consumption at each experimental visit.
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Stroop Test Performance
Időkeret: Before gameplay and immediately after gameplay at each experimental visit.
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Selective attention will be assessed using the Stroop Test.
The outcome will be the change in Stroop Test completion time from before gameplay to immediately after gameplay, with lower completion time indicating better performance.
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Before gameplay and immediately after gameplay at each experimental visit.
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Trail Making Test Performance
Időkeret: Before gameplay and immediately after gameplay at each experimental visit.
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Cognitive flexibility and processing speed will be assessed using the Trail Making Test.
The outcome will be the change in Trail Making Test completion time from before gameplay to immediately after gameplay, with lower completion time indicating better performance.
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Before gameplay and immediately after gameplay at each experimental visit.
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Self-Reported Alertness
Időkeret: Pre-game and immediately post-game at each experimental visit.
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Self-reported alertness will be assessed using a study-specific visual analog questionnaire.
Higher scores will indicate greater perceived alertness.
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Pre-game and immediately post-game at each experimental visit.
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Self-Reported Mental Fatigue
Időkeret: Pre-game and immediately post-game at each experimental visit.
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Self-reported mental fatigue will be assessed using a study-specific visual analog questionnaire.
Higher scores will indicate greater perceived mental fatigue.
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Pre-game and immediately post-game at each experimental visit.
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Average Time Per Move
Időkeret: From the start of the tournament-style chess game until game completion, assessed over approximately 3 to 4 hours at each experimental visit.
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Chess time management will be assessed as the average time used per move during each tournament-style chess game.
This value will be calculated from the total game time divided by the number of moves completed by the participant.
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From the start of the tournament-style chess game until game completion, assessed over approximately 3 to 4 hours at each experimental visit.
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Együttműködők és nyomozók
Szponzor
Nyomozók
- Kutatásvezető: Hossein Rafiei, PhD, St. Louis University
Tanulmányi rekorddátumok
Tanulmány főbb dátumok
Tanulmány kezdete (Becsült)
Elsődleges befejezés (Becsült)
A tanulmány befejezése (Becsült)
Tanulmányi regisztráció dátumai
Először benyújtva
Először nyújtották be, amely megfelel a minőségbiztosítási kritériumoknak
Első közzététel (Tényleges)
Tanulmányi rekordok frissítései
Utolsó frissítés közzétéve (Tényleges)
Az utolsó frissítés elküldve, amely megfelel a minőségbiztosítási kritériumoknak
Utolsó ellenőrzés
Több információ
A tanulmányhoz kapcsolódó kifejezések
Kulcsszavak
További vonatkozó MeSH feltételek
Egyéb vizsgálati azonosító számok
- SLU-CHESS-CAFF-2026
Terv az egyéni résztvevői adatokhoz (IPD)
Tervezi megosztani az egyéni résztvevői adatokat (IPD)?
IPD terv leírása
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