For people already running on a regular basis, there are still ways to lose extra weight. Workouts with varying intensity are a way to burn more calories than a simple easy run. When designing a workout with varying intensities, color coding the level of effort is common. When these varying intervals of training are used, it increases calories burned even after the exercise is complete. For example, running very hard for 30 seconds, with a 90 second recovery period will help you burn calories fast.
Read more: 30-Minute Weight-Loss Workouts for Runners