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Old 10-16-2012, 06:42 AM   #2
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Default Re: How Long Into A Run Before You Start Burning Fat?

It doesn't matter.

If you stay in the 'fat burning zone' during a cardio session, then you're just going to use more carbs later in the day. If you use more glycogen during a cardio session, you will use more fat later in the day.

Last edited by Jdsm; 10-16-2012 at 07:29 AM.
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