Influence of Coffeeberry Ingestion on Soccer Skill Performance
Influence of Coffeeberry Extract on Soccer Specific Skill Performance After Rest, During Simulated Soccer Match Play, and Following Fatiguing Exercise in Academy Football Players
1 other identifier
interventional
30
1 country
1
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).
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for not_applicable
Started Nov 2019
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
November 6, 2019
CompletedFirst Submitted
Initial submission to the registry
November 26, 2019
CompletedFirst Posted
Study publicly available on registry
November 29, 2019
CompletedPrimary Completion
Last participant's last visit for primary outcome
August 3, 2021
CompletedStudy Completion
Last participant's last visit for all outcomes
August 3, 2021
CompletedMarch 24, 2022
March 1, 2022
1.7 years
November 26, 2019
March 23, 2022
Conditions
Keywords
Outcome Measures
Primary Outcomes (6)
Dribbling speed
m/sec, increase would be better. Simulated match in an indoor gym with pre-set targets.
During 3.5 hours post consumption
Dribbling precision
Meters, more accuracy would be better. Simulated match in an indoor gym against pre-set targets.
During 3.5 hours post consumption
Passing accuracy
1-10 scale, higher score would be better. Simulated match in an indoor gym against pre-set targets.
During 3.5 hours post consumption
Passing speed by Time
km/h, increased would be better. Simulated match in an indoor gym against pre-set targets.
During 3.5 hours post consumption
Shooting accuracy
More shots on target would be better. Simulated match in an indoor gym against pre-set targets.
During 3.5 hours post consumption
Shooting speed
Milliseconds, faster would be better. Simulated match in an indoor gym against pre-set targets.
During 3.5 hours post consumption
Secondary Outcomes (2)
Sprint speed
During 3.5 hours post consumption
High-intensity endurance running capacity
During 3.5 hours post consumption
Other Outcomes (11)
Blood analyte concentration: Capillary glucose
During 3.5 hours post consumption
Blood analyte concentration: Capillary lactate
During 3.5 hours post consumption
Blood analyte concentration: Serum chlorogenic acid
During 3.5 hours post consumption
- +8 more other outcomes
Study Arms (2)
Coffeeberry beverage
EXPERIMENTAL300 mg Coffeeberry extract in 300 ml beverage
Color and flavor matched beverage
PLACEBO COMPARATOR0 mg Coffeeberry extract in 300 ml flavor and color-matched beverage
Interventions
One exposure of 300 mg coffeeberry extract in a 300 ml flavored still beverage prior to exercise session
One 300 ml still beverage, color and flavor matched to experimental beverage prior to exercise session
Eligibility Criteria
You may qualify if:
- Provide valid informed consent prior to any study procedure
- Male soccer players age 16 to 28 years
- year soccer playing experience
- 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
You may not qualify if:
- 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
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
University of Stirling, Health Science and Sport
Stirling, Scotland, FK9 4LA, United Kingdom
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Stuart Galloway, PhD
U. Stirling
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- QUADRUPLE
- Who Masked
- PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
- Masking Details
- Double-blind
- Purpose
- BASIC SCIENCE
- Intervention Model
- CROSSOVER
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
November 26, 2019
First Posted
November 29, 2019
Study Start
November 6, 2019
Primary Completion
August 3, 2021
Study Completion
August 3, 2021
Last Updated
March 24, 2022
Record last verified: 2022-03
Data Sharing
- IPD Sharing
- Will not share