What is the approximate glycogen storage capacity in muscles?

The glycogen storage capacity in muscles typically ranges from approximately 300 to 700 grams. This range is influenced by several factors, including the individual's muscle mass, training status, diet, and specific muscle groups utilized during physical activity. Well-trained athletes often have a higher capacity for glycogen storage due to adaptations in muscle tissue resulting from consistent exercise, particularly endurance training.

Glycogen acts as a critical energy reserve for high-intensity and endurance activities, allowing for sustained performance during prolonged exertion. Therefore, understanding this capacity is vital for athletes and dietitians to optimize carbohydrate intake for performance and recovery.

The other ranges provided do not accurately reflect the physiological limits typically established in sports science and nutrition literature.