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Effects of Caffeine on Agility in Amateur Soccer Players
Sponsor: Comenius University
Summary
This randomized, double-blind, placebo-controlled crossover clinical trial aims to investigate the acute effects of caffeine supplementation on motor and perceptual-cognitive components of agility performance in male amateur soccer players. The main questions are: i) Does acute caffeine supplementation improve motor performance, including countermovement jump height, drop-jump reactive strength, and planned agility? ii) Does acute caffeine supplementation improve perceptual-cognitive performance during reactive agility tasks involving light and human stimuli? Participants will complete two experimental conditions in randomized order, receiving either 300 mg of caffeine (\~3.7 miligrams/kilograms of body mass) or placebo pills. Following ingestion, participants will perform countermovement and drop jumps and three Y-shaped agility tests assessing planned agility, reactive agility to a light stimulus, and reactive agility to a human stimulus.
Official title: Effects of Caffeine on Physical and Perceptual-cognitive Components of Agility in Amateur Soccer Players
Key Details
Gender
MALE
Age Range
18 Years - 35 Years
Study Type
INTERVENTIONAL
Enrollment
16
Start Date
2024-10-21
Completion Date
2024-12-20
Last Updated
2026-09-28
Healthy Volunteers
Yes
Conditions
Interventions
Caffeine 300 MG
Supplementation was administered as caffeine capsules (Scitec Nutrition Caffeine, 100 milligrams per capsule). Subjects received 300 milligrams of caffeine, which represented an individual dose ranging from 3.16 to 4.44 milligrams/kilograms of body mass.
Placebo
Supplementation was administered as placebo capsules filled with potato starch. The capsules were visually identical, and neither the testers nor the participants were aware of the assigned condition.
Locations (1)
Comenius University in Bratislava, Faculty of Physical Education and Sport
Bratislava, Slovakia, Slovakia