A back brace can help unload some of the weight normally placed on the lower back, in the process reducing pressure on the spine's joints, discs, and muscles.
Wearing a back support belt provides extra support to the lower back and helps to reduce the strain on the spine
A back support belt also can help to improve posture by pulling the shoulders back and keeping the spine in a neutral position. This can help to reduce the pressure on the discs and alleviate pain.
A back-support belt can be easily worn underneath clothing to provide additional support for the lower back.