MIAMI, FL - JULY 10: Claudia Townsend does a head stand on her paddleboard as she enjoys a paddleboard yoga session at Adventure Sports Miami on July 10, 2011 in Miami, Florida. The paddle board is said to give the body’s core more of a workout then in a gym since the platform is unstable and one must use the muscles to remain balanced on the board. (Photo by Joe Raedle/Getty Images)
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