Then WTF was that 20mins????

[kinkery]

i read that it takes 20mins of cardio to start burning fat. then wtf was i burning the last 20mins?

 

[DOMS]

I'm believe that you were burning glucose (blood sugar). You have to deplete that before your body will start to take it from fat stores.

Keep in mind that I'm not Jodi (hell, I'm not even her dirty sock), but that's my understanding of it.

 

[AKIRA]

Yeah if there is a "burning zone." Might have to do with heart rate as well, but that should be up in under 20minutes, maybe even 10.

 

[Duncans Donuts]

Doesn't matter where you are burning calories from. What you need to focus on is calories expended and creating a deficit through diet. Your body will lose fat stores with a reasonable diet, the so called fat burning zone is meaningless.

 

[Dale Mabry]

I'm believe that you were burning glucose (blood sugar). You have to deplete that before your body will start to take it from fat stores.

Keep in mind that I'm not Jodi (hell, I'm not even her dirty sock), but that's my understanding of it.

No, actually, you burn more fat at rest and lower intensities, as you get closer to your maximum intensities, fat cannot provide the energy fast enough. Time has nothing to do with it, that whole 20 mins thing is BS, meant to get you to burn more total calories by doing low quality work for over 20 minutes.