I realised just how, well, I guess I could say close to useless
my treadmill running has been when I ran outdoors in Finland this past week. I was completely wasted and breathless after a 20 minute outdoor run, whereas I can run on the treadmill comfortably for at least 35 minutes even with a 1 gradient.
I did discover that I really love running in the woods (that's considered trail, right?) more than road or treadmill running, and somehow the trail runnig seemed MUCH easier
Anyone else find that?