Running

I spent the 5months preceding Ironman UK last year unable to run at all because of a succession of injuries resulting from a "heel strike" running gait ultimately down to excessive padding in the heel of "technical" running shoes. Over the course of the winter and early this season I have worked on transitioning to a "mid-foot strike" running gait and am running further, faster and with fewer injuries than ever.

I have a pretty bad running gate TBH.
My flat feet over-pronate a bit and I heel strike at all but my highest running pace. So use reasonable technical shoes on the road. I avoid building an injury by mixing in a lot of trail and off-road running, were your gate is constantly changing.