Want to supercharge your fat burning cardio? Want to cut down on the long amounts of running? Try High Intensity Interval Training.

Muscle Media has a primer on how to use HIIT, as well as a rundown of its benefits (50% more fat burning, less time needed in the gym).

Some of you may recognize the principles of HIIT right off, as they’re embedded in ’spinning.’

One of the things I’ve noticed about HIIT is that it allows you to whip yourself back into cardiovascular health very quickly…