normal cervical range of motion
The movement is equal on either side. Normal range of motion of cervical spine is. 1  Flexion â 80 to 90 degrees. 2  Extension â 70 degrees.3  Lateral flexion â 20 to 45 degrees on both sides. 4  Rotation â 90Â° of rotation to both sides.otation. Rotation is the movement which we use to look over our shoulder or look back. The movement is equal on either side. Normal range of motion of cervical spine is. 1  Flexion â 80 to 90 degrees. 2  Extension â 70 degrees. 3  Lateral flexion â 20 to 45 degrees on both sides.