Get the HIIT Cardio workout on treadmill at http://getbodyfit.co.uk/workouts/
The Treadmill -- 20 minutes
Step 1: Start with a 5-minute warm-up by running at a slow speed that's just fast enough to make you jog.
Step 2: Sprint at a speed of about 9mph - 17mph depending on your fitness level for 30 seconds then reduce the speed to about 4 - 6mph, so that you jog for 60 seconds to recover. Repeat this 12 times.
Step 3 : Cool down for 2-5 minutes by walking at a slow pace.
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