Originally Posted by
NWIFlyer
Nonetheless, I was able to run a fairly easy paced 5 miles without difficulty.
I ran an easy two miles yesterday -- didn't notice any effect. I'm coming back from a stress fracture, and I really wanted to get out there. I don't think I'd want to run more than 30 minutes in this air, even if I don't feel any effect. Seems like an unhealthy thing to do.