When posture is corrected, the entire body rebalances resulting in less stress to all areas including your low back.
Your postural muscles are constantly working to maintain an upright posture. Postural distortion results in uneven weight distribution over all of your joint surfaces. The muscles throughout your neck, back, arms and legs will compensate for this shift in weight. Pain will show up in the area of greatest breakdown. The reduction of postural distortion provided by the adjustment decreases the stress on all areas of the body and allows for the possible relief of pain and proper healing.