by TJ Murphy
Kelly Starrett tells you how to stay fast, supple and injury-free.
by Jordan Metzl, M.D. , Published May. 2, 2012, Updated Oct. 11, 2013 at 3:59 PM UTC
Dr. Jordan Metzl discusses what causes an aching Achilles tendon and offers advice for getting over an injury to this area of the body.
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