I see this on every single cardio machine at the gym. Fat Burning Zone and Cardiovascular zone. The Cardio Zone is at a higher heart rate than the Fat Burn.
I've read that Cardio burns 40% of fat from calories, and it burns more muscle cells than fat cells, and that fat burn burns off 50% of fat calories
What are your girls' opinions on Cardio VS Fat burn zones? Should I push for the Cardio zone every time or stay in the upper end of the Fat burning zone?



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