NCT04181619

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

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
30

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Nov 2019

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

November 6, 2019

Completed
20 days until next milestone

First Submitted

Initial submission to the registry

November 26, 2019

Completed
3 days until next milestone

First Posted

Study publicly available on registry

November 29, 2019

Completed
1.7 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 3, 2021

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

August 3, 2021

Completed
Last Updated

March 24, 2022

Status Verified

March 1, 2022

Enrollment Period

1.7 years

First QC Date

November 26, 2019

Last Update Submit

March 23, 2022

Conditions

Keywords

coffeeberrycaffeinepolyphenolschlorogenic acidexercisesoccerskillperformance

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

EXPERIMENTAL

300 mg Coffeeberry extract in 300 ml beverage

Dietary Supplement: Coffeeberry beverage

Color and flavor matched beverage

PLACEBO COMPARATOR

0 mg Coffeeberry extract in 300 ml flavor and color-matched beverage

Other: Comparator beverage

Interventions

Coffeeberry beverageDIETARY_SUPPLEMENT

One exposure of 300 mg coffeeberry extract in a 300 ml flavored still beverage prior to exercise session

Coffeeberry beverage

One 300 ml still beverage, color and flavor matched to experimental beverage prior to exercise session

Color and flavor matched beverage

Eligibility Criteria

Age16 Years - 28 Years
Sexmale
Healthy VolunteersYes
Age GroupsChild (0-17), Adult (18-64)

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

Location

MeSH Terms

Conditions

Motor Activity

Condition Hierarchy (Ancestors)

Behavior

Study Officials

  • Stuart Galloway, PhD

    U. Stirling

    PRINCIPAL INVESTIGATOR

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

Locations