Jillian Michael's Treadmill workout. This is a four week plan that allows you to progress in intensity over the course of 4-weeks. The treadmill workouts are short but intense. This 4 week progression is designed to be used in addition to resistance training during the week. Get shredded without losing muscle!
Shape Up: How to Do a 1-Hour Workout in 30 Minutes
"Minka Kellys treadmill workout: 1 minute at 5.0, 1 minute at 5.5, 1 minute at 6.0, 1 minute at 6.5, 1 minute at 7.0, 1 minute at 7.5, 1 minute at 8.0, 2 minutes at 4.5 Repeat five times. Love this, did this last year when I was training for a 5K and I lost like 8lbs in one week, running this every two days. :) It really works! Great way to lose weight fast!"