GHD Hip and Back Extension
“It’s using a dynamic and a static hip, and a dynamic and a static trunk.“ Seminar Staff member Rob Miller explains the GHD hip and back extension. For more info and upcoming dates for the CrossFit Level 1 Certificate Course:
CrossFit® - Forging Elite Fitness® ()
The CrossFit Games® - The Sport of Fitness™
The Fittest On Earth™
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