While running outside is probably the most enjoyable way to run, sometimes the weather or other circumstances force me to head to the gym and do treadmill runs instead. Since I started training for the 5k, many of my runs have been on the treadmill because they mostly consist of interval training. Whether you are training for a race or trying to build your endurance, interval training can be a great way to mix up a boring run routine. Also, by trying out some interval runs, you can be sure to be kept on your toes and challenged as you constantly switch speeds and incline levels. I found some really great interval exercises, on the fit blog, Peanut Butter Fingers, to do on the treadmill to help you mix up your normal run.

30-minute Treadmill Workout:

30-minute Treadmill Interval Workout

45-minute Treadmill Workout

Be sure to check out more interval training on Peanut Butter Fingers!