Clinical trial NCT04181619: Influence of Coffeeberry Ingestion on Soccer Skill Performance
Official title: Influence of Coffeeberry Extract on Soccer Specific Skill Performance After Rest, During Simulated Soccer Match Play, and Following Fatiguing Exercise in Academy Football Players
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: NA
Conditions: Skill Performance
Soccer Performance
Coffeeberry Effects
Keywords: coffeeberry
caffeine
polyphenols
chlorogenic acid
exercise
soccer
skill
performance
Lead sponsor: PepsiCo Global R&D
Sponsor class: INDUSTRY
First posted: 2019-11-29
Enrollment: 30
Sex: MALE
Minimum age (years): 16
Maximum age (years): 28
Standard ages: CHILD
ADULT
Accepts healthy volunteers: yes
Allocation: RANDOMIZED
Intervention model: CROSSOVER
Primary purpose: BASIC_SCIENCE

Brief summary: The study of soccer skill performance has 3 objectives. Objective 1 is to compare effects of coffeeberry (300mg) and placebo ingestion on dribbling speed and precision and passing and shooting speed and accuracy compared to placebo. 30 subjects will be assessed before dosing, after a 1 hr resting absorption period, and after simulated soccer match play. Of these 30, 20 subjects will proceed to Objective 2 (45 minutes of intense simulated soccer match play) and Objective 3 (repeated sprint activity continued until volitional fatigue).


Eligibility criteria: Inclusion Criteria:

* Provide valid informed consent prior to any study procedure
* Male soccer players age 16 to 28 years
* 5-year soccer playing experience
* 1-year regularly soccer training
* Free of injuries
* Willing to avoid alcohol in the 48-h period prior to main trials.
* Willing to avoid caffeine, caffeinated and decaffeinated products, apples, and, berries/cherries for 24-h prior to main trials
* Willing to record food intake over the 48-h period prior to the first trial and replicate for second trial
* Willing to abstain from strenuous physical activity for 24-h before all visits

Exclusion Criteria:

* Smoking
* Cardiovascular diseases
* Diabetes or other metabolic disease
* Presence of injuries
* Major illnesses or surgery in prior 90 days
* Participation in another clinical trial in the past month

Primary outcomes:
measure: Dribbling speed
timeFrame: During 3.5 hours post consumption
measure: Dribbling precision
timeFrame: During 3.5 hours post consumption
measure: Passing accuracy
timeFrame: During 3.5 hours post consumption
measure: Passing speed by Time
timeFrame: During 3.5 hours post consumption
measure: Shooting accuracy
timeFrame: During 3.5 hours post consumption
measure: Shooting speed
timeFrame: During 3.5 hours post consumption
Secondary outcomes:
measure: Sprint speed
timeFrame: During 3.5 hours post consumption
measure: High-intensity endurance running capacity
timeFrame: During 3.5 hours post consumption
Other outcomes:
measure: Blood analyte concentration: Capillary glucose
timeFrame: During 3.5 hours post consumption
measure: Blood analyte concentration: Capillary lactate
timeFrame: During 3.5 hours post consumption
measure: Blood analyte concentration: Serum chlorogenic acid
timeFrame: During 3.5 hours post consumption
measure: Blood analyte concentration: Serum caffeine
timeFrame: During 3.5 hours post consumption
measure: Rate of Perceived Exertion (RPE)
timeFrame: During 3.5 hours post consumption
measure: Activation/Deactivation (feelings and mood)
timeFrame: During 3.5 hours post consumption
measure: Mental energy
timeFrame: During 3.5 hours post consumption
measure: Physical energy
timeFrame: During 3.5 hours post consumption
measure: Heart rate
timeFrame: During 3.5 hours post consumption
measure: Gut comfort
timeFrame: During 3.5 hours post consumption
measure: Hydration status
timeFrame: During 3.5 hours post consumption
Locations:
city: Stirling
country: United Kingdom
facility: University of Stirling, Health Science and Sport
state: Scotland
Study officials:
affiliation: U. Stirling
name: Stuart Galloway, PhD
role: PRINCIPAL_INVESTIGATOR
References: