13 Interval Training Workouts That Change Your body-SliderPhoto


3. Treadmill
To create your own HIIT treadmill routine, set a challenging speed and incline and push yourself really hard for the duration of an awesome song. Then walk at a low incline for another song and repeat. When that first song is over, check to see how much distance you covered and try to beat it the next time around. This tip is from Blahnik, creator of the Tread & Shred Method, and it works to both combat boredom and increase calorie burn!

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4. Fit it In
Research shows you can get better results in a mere 15 minutes of interval training three days per week versus an hour of jogging on the treadmill. A 15 minute burst of HIIT is easy with running, boxing or even using a set of weights at home.