Running 'form'.. what the HELL IS it?? ? Or.. can Doris get her mojo back?

I saw my friend recently as a patient in my clinic. She is training for the New York City Marathon in just a few weeks time. In the lead up to the big day, she has been plagued by shin pain.

And, despite visiting any number of 'specialists", her pain remains.. and it got me thinking, just how much of this was down to her "form"?