Impact of Coffeeberry Extract on Skill Performance During Simulated Match Play in Academy Football Players

Impact of Coffeeberry Extract on Skill Performance During Simulated Match Play in Academy Football Players

This study of soccer skill performance has three objectives:

1. Compare effects of coffeeberry (300mg) and placebo ingestion on dribbling speed and precision, passing speed and accuracy, and sprint speed during a full simulated soccer match.
2. Compare effects of coffeeberry (300mg) and placebo ingestion on subjective measures (mental / physical energy and activation-deactivation (feelings or mood) during a full simulated soccer match.
3. Compare effects of coffeeberry (300mg) and placebo ingestion on chlorogenic acid (CGA) and caffeine metabolites in the blood 1-hour post ingestion, and other blood metabolites (glucose/lactate) throughout the simulated soccer match.

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 all visits
• Willing to avoid caffeinated products and apples, berries/cherries for 24-h prior to all visits
• 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 • Hypertension (>140/>90 mm Hg)
• Presence of injuries
• Major illnesses or surgery in prior 90 days
• Participation in another clinical trial in the past month