A Kick-Your-Own-Ass Treadmill Workout – No Trainer Needed

Increase your endurance| raise your heart rate| and rev your metabolism with this interval workout. This ladder run ¡ª with the speed intervals increasing in duration as the workout progresses ¡ª is designed to push you out of your comfort zone to burn some serious calories. If this is not your pace| no worries! Find a speed that works for you| but keep the timing and increases in pace the same.

Click here for a printable version you can take to the gym. Now get running!

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