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Originally Posted by LisaM
I agree with John - most accurate is always one where you can program your own stats in. If the machine is asking for your weight, you can trust calories burned a little more. The machine looks absolutely cool - hope my bosses are thinking about getting a couple of 'em... 
Disagree that it's as simple as heart rate only (you knew I wasn't going to let that one slide, John!). Experts split about 50-50 on this one, according to my study materials. You shouldn't be exceeding your maximum for any length of time, and you can over-exercise. It's part of what causes stalls and plateaus in weight loss, among many other factors. |
Okay, so both machines, eliptical and arc, I program in my weight and age. There is also resistance to select, level and incline/cross ramp. So that may account for some of the difference too.
I am most comfortable with my heart rate between 120 and 135. I can certainly keep it going at 145-150 for a while, but I only do that when I've slept well and if I'm not about to go to work. I get too "heated up" to cool down fast enough to get to work not a sweaty mess. (The only down side to working out at 5:50 a.m. every day)