The aim of this clinical trial is to examine the effects of two different natural fruit-vegetable blend beverages on short-duration, high-intensity exercise performance and muscle oxygenation in young male football players. The study also investigates how these beverages influence certain metabolic responses. The main questions it seeks to answer are: * Does one of the beverages improve peak and mean power output during the Wingate test? * How do these beverages affect muscle oxygenation and post-exercise recovery? * Researchers will compare the effects of the two beverages on performance and metabolic markers. Participants: * Consume one of the two natural beverages 2.5 hours before testing (assigned at random) * Perform a 30-second high-intensity Wingate cycling test * Undergo measurements of muscle oxygenation, heart rate, blood pressure, blood lactate, and blood glucose during and after exercise * Maintain consistent dietary and physical activity routines and avoid certain foods prior to testing
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Mean power output during the 30-second Wingate anaerobic test
Timeframe: Day 1 (2.5 hours after supplementation, during Wingate test)