Push hard in this exercise because in order to make the most of stored fat you need a lot oxygen and in this short interval try to boost your heart rate up. (women-workout-routines.com)
Even more, you can boost your heart rate which is always a great goal. (liftingrevolution.com)
For beginners, this warm up may be too intense, boosting your heart rate very quickly in the first few moments of your routine. (topexpertchoices.com)