Mueller Lumbar Back Brace with Removable PadBecause of the complexity of the back and abdomen, aches and pains can originate from any number of causes including strains, sprains, muscle spasms, and disc or arthritic conditions. Back braces and supports can offer relief for many ailments and activities including: Muscular weakness of the back abdominal muscles. Lumbar Orthosis, Sagittal Control. Reduces load on intervertebral I disc (L1 L5). Lifting activities. Posture control. Osteoarthritis