The German doctor Caroline Werkmeister said that the backpack is the best among the different types of bags for the spine, because it does not cause stress on one side of the body.
She stressed that the bag should not be too heavy, comfortable during pregnancy, advised to carry only important items, and the distribution of weight properly, with the need to be wide enough to distribute the load belts over a larger area.
Caroline Werkmeister of the University of Hamburg-Eppendorf Medical Center added that the other bags, especially when rotating the load of different types of them, work to activate a different group of muscles with no unilateral body fatigue.
She advised to change the side, which holds the bag, which is attached to the shoulder from time to time, where the person always tends to lift the shoulder a bit. The German doctor warned of belts, which tighten on sensitive structures in the neck area, as this leads to irritation of nerves and muscles in the upper part of the spine.