Exercise Duration & Fuel Selection

The video tutorial by Kevin Tolkoff explains how fuel sources change with exercise intensity and duration. At lower intensities, fat is the primary fuel, while at higher intensities, carbohydrates dominate. As exercise duration increases, the body shifts from using carbohydrates to fats due to limited glycogen stores. The video also discusses energy storage in glycogen and the role of adipose tissue in prolonged exercise. Key differences between fuel usage based on intensity and duration are highlighted.

What new insight or understanding did you gain from this video?