Quote:
Originally Posted by
TyCooN 
It feels easier to run harder and longer on the mill than outside for me.

Exactly my point about 'better': for you it seems easier. For me, I can't run my fastest unless I'm on a track with spikes on. The biggest problem I have with treadmills -- at least in physical terms -- is that aren't big enough for a decent stride length. Most people do the 'marathon shuffle' on them. Then again, most people do that anyway. Personally, I have an issue with using energy to power a machine which has a sole purpose of expending energy on a person that previously consumed too much energy.