Generally, speed skaters don't run that much. I'm a little bit of an exception in that I run a lot.
I tend to build bulk and muscle easily, and running seems to make sure I stay kind of stringy, if that makes sense.
A lot of times, some of my best ideas happen when I'm running. That's when I do my best thinking.
On the ice, if I slow down, I can coast behind somebody for a couple of laps. If I slow down on the run, it'll turn into a walk.