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Hyperextension (exercise)
Body exercise / From Wikipedia, the free encyclopedia
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This article is about the body exercise. For the anatomical movement of joints, see Extension (kinesiology).
A back extension is an exercise that works the lower back as well as the mid and upper back, specifically the Erector spinae. Each of us have two Erector spinae muscles, one of either side of the spine that run along the entire length of the spine. Erector spinae muscles are actually formed of three smaller muscles – spinalis, longissimus, and iliocostalis.[1]
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