Hey guys.... I go to the gym someplace between 2&3 am so there aren't too many people to talk to about this. I have been trying to keep my heart rate about 130 but that has just been my best guess. when I first got on my diet I was 425 pounds and I lost most of it just by walking and cutting the grass and things like that. Now that I go to the gym most of the cardio equipment has the heart rate monitors built onto them and was wondering if I should try to bring it up a little more or stay where I'm at? Being such a large guy (380) It doesn't take very long to get my rate up to 130-140 and it feels pretty good but I feel like I could do more. I really don't know the difference between the fat burning and the cardio but more seems like better. But thats just my uneducated guess..... what do yall think??????????