It’s called High Intensity Interval Training, HIIT for short.  As the name suggests it is intense. I should start by saying, I’m not a trained or certified health expert by any means. All I know is that if you are looking to get all around results with building muscle, endurance, cardio, anything at all HIIT will deliver.

Link to article – 

Getting In Shape For Summer – HIIT Workout [Video]

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