What does a weightlifting belt protects against? How exactly? I can't imagine why wearing it is better, although I have used them and, at least subjectively, I felt more safe and comfortable during the lifts.
There are several reasons why you would where a weight belt and the best reason is:
- To protect your lower back.
It depends on what weight you are lifting, if you are lifting something that require some effort then you would need a weight belt.
Please have look at this links with more information.
All of the upsides to wearing a belt come down to the idea of intra-abdominal force or pressure. Pros and Cons of varying belt.
The assistance and/or protection provided by a support belt during exercise may be a result of increased abdominal pressure (IAP), feedback to the exerciser on body position, reduced compressive and shear forces on the spine, and restricted torso movement. More.