Wearing basically any shoe on a daily basis is like wearing a miniature high heel (even the guys). There is so much elevation and cushion in the back of your shoe with the heel protection and cushion that it is raising your calcaneus significantly higher than it needs to be (we are talking mm or a cm here) and shortens the entire heel cord which results in changes in your entire posterior chain. Now this change starts early. As Kelly Starrett has mentioned it, most kids run completely natural up until 1st grade when all the sudden it changes and they are in bigger, cushioned shoes and they begin to heel strike and walk around in these shoes. This is the start of a long process of being in cushioned shoes for most of your life.

The good news is fixing can be easy. All it takes is practice and re-learning to run. Running is a skill just like anything else we learn to do so take the time to practice. First thing is get a pair of shoes that will allow your heel cord to be at its normal length all day. A shoe with no more than a 4mm drop (heel to toe) is ideal, the flatter the better. These shoes will also make running on your "forefoot" feel much easier when a big cushioned heel isn't in your way.
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