Today was the first day I ran since last Sunday since I am nursing my sore psoas. We ran on the rail trail, it was so nice. The trails are wide and cushy and very easy to manage. But best of all they are flat! I read that hills are hard on your psoas so I choose to keep it simple today. My hip was sore but I was able to stretch out the soreness. I think I might stick with rail trails for my long runs for Chicago.