Acting bilaterally, what movement do the erector spinae muscle groups produce?
Question
Acting bilaterally, what movement do the erector spinae muscle groups produce?
Solution
The erector spinae muscle groups, when acting bilaterally, produce the movement of back extension. This means they work together to straighten the back and allow it to return from a bent or flexed position. They also assist in the lateral flexion of the back (side bending) and can help in the rotation of the spine.
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