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The static back extension builds strength in the lower back, hamstrings, and glutes. Performing the exercise with a static contraction increases muscular endurance.
back view of sportive woman doing arms and back extension exercise on lat machine Stock Photo - Alamy
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Woman lying on stability ball doing back extension exercise for healthy fit body Stock Photo by ©lacheev 431550336
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Woman doing back extension exercise on fit ball with online trainer. Top view Stock Photo - Alamy
