[header] How to make treadmill exercise more interesting [title] Do a treadmill hiit workout. [step] Hiit workouts or high intensity interval training are a popular new form of exercise. These types of workouts have a variety of benefits and can be done with any type of cardio equipment including a treadmill. 
[substeps] Hiit workouts are usually a little shorter in length-maybe 20-30 minutes-and alternate between very high intensity exercise and more moderate intensity exercise. On a treadmill, you can alternate between sprinting and jogging or between jogging and running on an incline.