HIIT or High Intensity Interval Training, for those who haven’t heard about the relatively new craze for it, are series of all out timed high intensity training with brief timed rest in between. 

If you have ever been to an Orange Theory class, this is the style of training you would have taken part in. However, HIIT can come in many different forms. 

Sprinting, spinning, rowing and jumping rope are great examples of some exercises that HIIT can be achieved.  In this style of cardio, you are performing anaerobically, or without the aid of oxygen.

One benefit of HIIT cardio is that it actually creates an oxygen deficit known as EPOC or Excess Post Oxygen Consumption, also known as the “Afterburn Effect”.  From EPOC, after HIIT cardio, your body consumes more oxygen and temporarily increases your metabolic rate (aka burns more calories).

This afterburn effect can cause an increased metabolic rate for up to 72 hours afterwards!  This means you continue to burn more calories at rest than you otherwise would normally.  Also, for the same amount of calories burned during HIIT, it only takes a fraction of the time.  Perfect for those who have a busy schedule.

So, why aren’t we jumping down your throat telling you this is the best type of cardio?  A few reasons, ultimately because of the opening statement in this article (you may not enjoy it) but also for reasons listed below.