Originally Posted by Mike ODonnell
I've heard 3% before....but then again I hate jogging.
Not too much difference between 3% and 1% really. Just that 1% more closely matches running outdoors on a flat surface. 3% would not be that far off. Of course, when these studies are done, the % grade on the treadmill is always calibrated. You can't always count on the read out on the machine to be accurate.
Oh...I love running but I hate running on the treadmill, no matter what % grade!