Sling Backpacks May Lead to Back Injuries

School bags slung on one shoulder may be "styling" as children often say, but an expert has warned that this may cause a severe back injury.

According to Professor Gregory Kolt, a physiotherapist and health psychologist from the University of Western Sydney said that a bag slung over one shoulder can catastrophically affect the spine of school children.

He said that humans are designed to be symmetrical and a poorly fitted backpack or heavy load can instantly cause a muscle fatigue.

"Carrying a load unevenly in bag slung over one shoulder or a poorly fitted backpack throws out this balance, places strain on muscles and can cause serious damage which can continue into adulthood," a newspaper quoted Prof Kolt, as saying.

It is necessary to have a backpack that is correct in size for the wearer, holds the load against the back, with a semi-rigid bottom panel, padded shoulder straps and panels against the back.