Don't have an answer, but there must be a reason why every US Olympic athlete has a chiropractor in the wings at the games, including the horses!
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I once met a Horse Chiropractor... well, a chiropractor for horses. SHE was interesting to talk to.
By the way... I recently visited the new Kinematics Lab, in Port St, Lucie, FL.. They do Motion Analysis of various movements and joint movements of the body. It's kind of a bio-mechanics lab for golfers. They give you specific exercises, but don't actually teach a golf swing.