What is the primary motion of the lumbar spine?

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Multiple Choice

What is the primary motion of the lumbar spine?

The main idea here is that the lumbar spine is built for bending forward and backward. The facet joints in the lumbar region are oriented mainly in the sagittal plan, which supports forward (flexion) and backward (extension) bending and provides stability. Because of this setup, rotation is limited and not the primary movement, while some side-to-side bending can occur but is not the dominant motion. Circumduction, a circular movement combining multiple planes, isn’t how the lumbar spine typically moves. So, the primary motion of the lumbar spine is flexion and extension.

The main idea here is that the lumbar spine is built for bending forward and backward. The facet joints in the lumbar region are oriented mainly in the sagittal plan, which supports forward (flexion) and backward (extension) bending and provides stability. Because of this setup, rotation is limited and not the primary movement, while some side-to-side bending can occur but is not the dominant motion. Circumduction, a circular movement combining multiple planes, isn’t how the lumbar spine typically moves.

So, the primary motion of the lumbar spine is flexion and extension.

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