Earlier quoted context omitted.
> (1) ... Contrary to the article, many people do need to fix their "natural" form I'll second that. I'm not a natural athlete. I have very poor kinesthesia (our 6th sense). I accidentally walk into doorframes as I try to pass through. It wasn't until my wife told me that I realized my originally learned running pattern was bad for my joints.
I'm curious about the downvotes. Is it in poor taste to share personal experience? Perhaps I should clarify: I used to step too long while running, landing on the heel. With shorter strides, I feel much better afterwards.
When people first start to pick up speed, they naturally tend to increase stride before they increase tempo. I think it comes from their experience with walking. Whatever the reason, it turns out to be a dangerous tendency that even runners far more experienced than me have to fight sometimes (and some lose). As more people hear that, fewer will become injured or discouraged. Hearing it from people who they can identify with, who haven't been elite athletes since junior high, is most helpful.