The main function of the spinal erectors is to?

The spinal erectors primarily function to extend the spine. These muscles run along the back from the pelvis to the head and play a crucial role in maintaining an upright posture as well as restoring the spine to an extended position following flexion. During activities such as standing, walking, and lifting, the spinal erectors engage to help maintain structural integrity and prevent excessive forward bending.

In addition to their role in extension, these muscles also contribute to spinal rotation and lateral flexion to some extent, but their dominant function remains extension. Knowing this helps students understand the essential mechanics of the spine and how these muscles support movement and stability in various physical activities, particularly in Pilates exercises that emphasize core strengthening and spinal alignment.