M mike1234555 New member Apr 26, 2002 #1 when your doing cardio the first 20 minuted your using carb stores.After those 20 minutes you burn fat.Does it still hold true if you have done wieghts before hand?
when your doing cardio the first 20 minuted your using carb stores.After those 20 minutes you burn fat.Does it still hold true if you have done wieghts before hand?
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