I changed.
I had a physiological run assessment done a few years back and a small part of it was a gait analysis which revealed that I was a heel striker ( I already kind of knew based on shoe wear etc. ) in addition to what most people would call “overpronation”
What I was told at the time was 2 key things, first that there isn’t a whole lot of point to consciously trying to change stride, as that could have me trying to run in unnatural ways, and that given my current ultrarunning goals actually would work ok with it, since it wasn’t a brutally hard heel strike, I actually flowed through quite nicely.
I promptly continued to ignore my gait.
Then a while later, some things started to happen.
I started doing trackwork, I started running on the road more, and I found the faster I went, the more I’d naturally strike with a more midfoot or forefoot strike, just while doing the fast stuff.
It would DESTROY my calves. The extra eccentric loading was BRUTAL.
My normal running I’d still heel strike for some time, but eventually I started to find that on tempo style runs, I was naturally starting to run more with a midfoot strike naturally. Problem was, it was still making my calves way more sore than normal.
Normally most people advise not trying to consciously alter your gait, in order to prevent unnatural movement patterns being overloaded and potentially causing injury, but I found times where I’d have to consciously revert to my heel strike to give my calves relief. This would especially be the case later into races etc.
The more time that went by, the more I started to realize the calf discomfort was going away, a few people told me my calves looked better developed, but most importantly, I was continuing to run in a way that felt most natural to me, but now I was running not as a heel striker, but as a fore/midfoot runner. ( the faster the pace, the more forefoot it gets )
A few months ago on a run, a local coach who I really respect started to ask me about the change in my gait, as she noticed that I looked WAY more efficient as a runner, and whether I’d made the changes consciously, so I gave her the quick summary that it came down to just adaptation to more trackwork over time, while having to consciously hold back a bit to a pattern that I knew my body was already adapted to, and she told me it’s exactly the way she would have liked to see the changes made.
I currently have the best run fitness of my running/triathlon career atm.