During high-intensity exercise, glucose serves as a primary source of energy for working muscles. The body rapidly breaks down glycogen stores, found in liver and muscle cells, into glucose to meet the heightened energy demands. Effective glucose utilization is essential for sustaining performance and preventing fatigue during intense workouts. Moreover, maintaining appropriate blood glucose levels is crucial in optimizing endurance and peak performance. Proper nutrition, including carbohydrates before exercise, is vital for replenishing glycogen stores and supporting ongoing physical activity.