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Posts Tagged ‘John-Harker’


Tabata Anything – Four Minutes of Pain to Gain

This guest article was written by John Harker, a cardio kickboxing teacher in Santa Cruz, California. I have incorporated Tabata intervals into my workouts for a few years now, and they are a very effective way to get a lot of work done in a very short amount of time. The Tabata workout is a [...]

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