Originally Posted by
socalrider
a more accurate measure is 8 cal per minute at moderate pace, 12-16 cal per minute at hard efforts..
That makes more sense to me 8 X 60 = 480/hr and I think 12 X 60 = 720 is reasonable for HARD effort. The 16 X 60 = 960 would be hard to get to unless you are really in shape.
I had a friend (400+ lbs) who put his weight into an elliptical machine it it said he burned 3500 cals in 47 minutes. And ellipticals are one of the most useless fat burning contraptions out there.