The notion that sport shoes and inserts should keep the human arch stiffly supported is a decades-old assumption that could use some rethinking, according to a British gait analyst who has closely studied more than 25,000 footsteps of healthy people.
~ Deborah Franklin from, http://www.npr.org/blogs/health/2013/08/20/213882836/golden-arches-human-feet-more-flexible-than-we-thought
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