Addition of Caffeine to a Carbohydrate Feeding Strategy Prior to Intermittent Exercise

Caffeine co-ingested with a high carbohydrate meal resulted in a 12.8% improvement in exercise capacity during soccer simulation.

• No significant performance effect was identified despite the observed improvement in exercise capacity (p=0.099).
• Carbohydrate and fat oxidation rates did not differ between caffeine and placebo conditions.
• No differences were found in plasma glucose, fatty acids, glycerol, or β-hydroxybutyrate levels (p>0.05).
• Caffeine supplementation led to a significant increase in lactate levels (p=0.039).
• Participants reported lower ratings of perceived exertion with caffeine compared to placebo (p<0.001).
• Findings may be limited by the small sample size.

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