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Just found this 20-minute video from Stu Mittleman about getting in a target zone and the “slow burn” method. Seems pretty interesting, anybody try/know more about this? I’m just getting into long distance running, does his stuff work? -Thanks!
If it sounds too good to be true, it probably is.
Generally speaking, when running slower, a higher percentage of calories burned come from fat. When running faster, you burn more calories in a given amount of time. So the amount of fat burned may be the same, but the total calories higher.
There's some truth to the claim that you burn more fat when you exercise "slower," i.e., under 75% of your max heart rate. But have you ever noticed that the majority of recreational runners who don't do workouts (or, only run slow) aren't ripped or have low body fat percentages? The truth is that you need very hard efforts to shed pounds - maximum to near-maximum efforts of high intensity to jack your metabolism up. I wrote about this here: http://bit.ly/cjpjJg.
I hope this helps! Cheers, - Fitz.