The Energy System of Running
Running requires muscles to produce energy continuously through ATP. Carbohydrates and fat serve as primary fuels, with glycogen supporting…
Energy
The Crossover Point: When Running Pace Changes Your Fuel Source
Running pace affects the body’s choice of fuel. At slower speeds, fat provides most energy. Increasing pace shifts reliance toward gl…
Why Easy Runs Burn Mostly Fat
Easy runs are performed at a pace that prioritizes fat as the primary fuel source. This occurs because fat metabolism meets energy demands …