Ok-this is kind of a weird question, but I am now curious. I am a college student and I am in the Exercise and Sports Science department and one of my classes is Accident Prevention. We were talking about back injuries today and my teacher said that back supports do nothing and a student asked if belts while doing back exercises help and the teacher said no. I was curious if this is true, because if it is people are spending money on nothing. It personally seems to help me and I know it helps my boyfriend. I asked him about it at lunch and we decided putting it on here is a good idea. Thanks in advance for responses. I am not used to putting things up on here, but I will gain knowledge and probably confidence in the long run. I read stuff on here and ya'll are funny and knowledgable-I love it. Take care and have a great day!!