Do you use a weight belt during your lifting sessions? Can a belt help with lower back injuries?? Did you know that wearing a belt during heavy lifts can actually help support the spine better and engage your inner core muscles. Belts help aid in lifting performance and possibly give you a psychological edge over someone who doesn't wear a belt because of the safety factor installed into your mind when using one. Are there any disadvantages in using a belt? Well, I believe the belt should only be used when you are performing the big, heavy compound lifts like squats, deadlifts and possibly even bench pressing. Using the belt on isolation movements or all the time when in the gym isn't something I would recommend.
In summary, use the weight belt for the big lifts, drop the belt for everyday exercise :)