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

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).

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