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Which muscles are responsible for extension of the lumbar spine?
Which muscles are responsible for extension of the lumbar spine?
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The erector spinae muscles, including the iliocostalis, longissimus, and spinalis, are responsible for extension of the lumbar spine.
The primary muscles responsible for the extension of the lumbar spine are the erector spinae muscles. These muscles run along the length of the spine and include three main groups: the iliocostalis, longissimus, and spinalis muscles. They work together to extend and straighten the spine, helping to maintain an upright posture and support the back during activities such as lifting and standing.