So the explanation here is clear: Our skeletons, musculature and nervous systems are highly refined and well-coordinated adapative systems which adjust both instanteously and by means of longer term adjustments to in order handle the terrain. These “proprioceptive” adjustments take place virtually beneath the level of consciousness, through the exquisite feedback systems of our body and brain. Try to circumvent these systems, and the protective mechanisms will weaken, exposing us to injury.

~ Todd Becker from, http://gettingstronger.org/2010/03/the-paradox-of-barefoot-running/

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