Remember, it is important to keep your multifidi activated throughout your daily activities to hold your natural lordotic curve in sitting and standing positions. (hab-it.com)
But, you should never lose your neutral lordotic position in your lower back — keep your pelvis neutral and your lower back will follow. (kingofthegym.com)
Remember, a healthy low back is a back in neutral spine with the natural lordotic curve, not a flat back or rounded back. (hab-it.com)