The German orthopedic specialist, Professor Ralf Stocker, stressed the importance of proper arrangement of the contents of the school bag to protect the child from back trouble.
He explained that heavy objects should be placed near the back, while light items are placed in the front of the bag, so that the child does not take the position of the hollow back in order to balance the weight. To reduce the burden on the back, the bag should have padded shoulder straps, at least four centimeters wide, and should be of equal length when carrying the bag.
In general, the school bag should not exceed 10-15% of the child's weight.
For its part, warned the German Association of Pediatricians that the inappropriate school bag threatens the child with back problems, stressing the need to be inappropriate if they are wider and longer than the trunk of the child's body. “If the school bag is too wide from the top, the child will have to bend forward, putting a burden on his back. If the bag is higher than the shoulder, it will hinder the child's vision back, threatening his safety on the way to and from school. '' A little over the seat, while the bag does not stick to the back.