This infographic easily demonstrates a treadmill interval workout. This information was created by fitness trainer, Jay Blahnik. It is made to prevent boredom, promote calorie burn, and improve endurance.
Glute Burning Incline Interval Workout - Make that treadmill work for you! I like this for days I would decide not to run, to get the max out of it, and hey, you can do anything for two minutes at a time right?