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When the spine contracts concentrically, primarily during movements like flexion or extension, the muscles along the spine, such as the erector spinae, rectus abdominis, and obliques, shorten to produce movement. This action helps stabilize the vertebral column while allowing for controlled motion, such as bending forward or arching backward. Concentric contraction aids in maintaining posture and facilitating dynamic movements essential for various physical activities.

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2mo ago

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