The lower back supports both the spine and your entire upper body, and is prone to injury because nearly every movement and activity uses the muscles, ligaments and bones in the lower back. Jobs that involve repeated lifting or sports that twist your back frequently, such as golfing and tennis, can put your low back at risk for injury. Many women also have lower back pain during pregnancy or post paestum. Wearing a back brace or belt to support your lower back helps to prevent strain or added pressure on your spine. A low back brace can also help keep your back in the proper position and provide compression to help torn back ligaments.