Originally Posted by InOmaha

I'd count them. I counted the 7 miles/day I ran on the treadmill. Just like outside, the stress of the workout is a function of how hard you make it. Set your trainer to max resistance, your bike to the highest gear, and pedal without taking a break. It beats looking out the window on a thunderstorming spring day wishing you could ride outside.

I'm in it for the results and the only numbers that count for me are weight, pants size, blood pressure, cholesterol level, etc. If that means putting on 1500-2000 "miles" of riding extra per year indoors, so be it. I ran 1,800 miles one year on a treadmill to help drop 40 lbs. I'm not certain how someone could consider that "cheating" by any stretch of the imagination.