The function of carbohydrates in athletic performance is to serve as a primary source of energy. During exercise, carbohydrates break down into glucose, which fuels working muscles. Adequate carbohydrate intake is crucial for maintaining optimal performance, particularly in endurance activities. Carbs aid in replenishing glycogen stores post-exercise, helping to enhance recovery and improve subsequent performance. Athletes are encouraged to consume sufficient complex carbohydrates to support their training and competition needs.