how to determine if you are in fat burning zone

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fat burning zone

BART78 @BART78 (2927) • Canada 20 Oct 09

are you frusted in losing weight? you do your cardio-exercises and nothing is happening? well here's a tip, in order for cardio-exercise to be effective, it needs to be done within the fat burning zone, it is the zone at which you...

how to determine if you are in fat burning zone

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