Interval running differs from steady-state running in that it involves alternating between periods of high-intensity effort and recovery. This approach can enhance cardiovascular fitness and increase burned calories during and after the workout, a phenomenon known as the afterburn effect. Steady-state running, on the other hand, focuses on maintaining a consistent pace over a longer duration. While both methods improve endurance, interval training is often more time-efficient, and can lead to improved speed and stamina more quickly.