Everything you ever wanted to know about pronation

Pronation:how the body distributes weight as it cycles through the gait. Types of pronation include neutral pronation, underpronation (supination), and overpronation.

I’ve been running so much that I have a very sore knee and a serious foot pain that bugs me. I found out lots that I didn’t know here at the Runner’s World website, although I’m not sure I found a solution to my particular issue.

I fear I run like this:

But Amy assures me I don’t. Two more videos and some interesting explanation of foot mechanics, though, at the link, if you’re into that sort of thing.