Fat Burning zones

[Michael]

So when I work out I generally do 20 minutes on a bike, 20 ninutes on a strider and 10 on a stepper. As well as lift weights.

I generally try to get my heart-rate at about 180 - 200. More intensiity = more fat burned right?

Apparently low intesnity is best between 160-170.

Which is best/

 

[SO MUCH TO LOSE!]

Im No Expert But Your Fat Burning Zone Is Different For Different Ages,in My Gym They Have Just Put Up A List As Im 32 I Should Be Between 120-150, 150 Being The Highest And I Was Told That Its Not Good To Go Over This,how Old Are You?maybe You Should Ask At Your Gym Or Maybe Google It To See,
Sorry Im Not Much Help Hope You Get An Answer Soon,
Elaine X

 

[Michael]

I am aged 21 and make, if that matters

 

[Michael]

Thanks for the help.