Many researchers feel that there is really no long-term evidence to show that back belts do anything substantial to reduce significant pressure on the spine. Based on the results of these studies, I cannot recommend the lifting-belt device to prevent back injuries. A 1992 study using 652 airline baggage handlers concluded that lifting-belts should not be worn for this type of activity. Consequently, there is reason to believe that this dependency may actually increase the chances of back injury when the belt is not worn. A few researchers have also indicated that the increased intra-abdominal pressure caused by using the belt can lead to increased systolic blood pressure impeding blood flow to the heart.
Sanitation also becomes an issue when dealing with back belts.
It is advisable that employees not share belts unless the belts have been properly sanitized. It is most desirable, however, to have one belt issued to each employee. It is obvious that there is still much research that needs to be done in this highly controversial area. At the very minimum, everyone agrees that lifting belts alone will not eliminate back injuries. Even proponents of lifting belts agree that a successful program is dependent upon employees receiving proper training in lifting techniques and instruction on the proper use of the belt.