Heel stride is abnormal to body mechanics...I don't understand your point here. Running and walking are two different actions. Running barefoot (on grass), it's the front part of the foot which touches the ground first (an action many joggers lose when running in shoes on hard surfaces). Walking, it's the heel that touches first. I find it very comfortable to walk in flat shoes, but it's clear that for practical purposes the heel region of the sole needs extra reinforcement.
9/13/14 at 3:43am