I ran pain-free for years on concrete in vibram toe shoes. I ended up convincing myself that one needs to re-learn how to run, but that it is indeed possible to

I ran pain-free for years on concrete in vibram toe shoes. I ended up convincing myself that one needs to re-learn how to run, but that it is indeed possible to run even on hard surfaces if your technique is efficient enough. edit: An excellent video showing the subtleties of perfect form: https://www.youtube.com/watch?v=mTMgIViinuQ https://www.youtube.com/watch?v=mTMgIViinuQ