Backpack belt is too long neck injury 
 
 
Zhang jun, The fourth affiliated hospital of Harbin medical university 
 
 
China's traditional Chinese medicine to 

        Some people back backpack, like put the package take very long, even fall in the bottom edge. In fact, the longer the backpack belt, shoulder it force offered the deviation from the vertical direction, the neck, shoulder and back will produce certain harm. 
 
        Package should make the bottom of the bag belt length and the waist was flat, or hold the package at the strongest central back muscles. Taut as far as possible when backpack backpack belt, prevent drop package to back here. Some backpack equipped with chest strap and belt, is to transfer the pressure setting of the spine, back when the weights must be fastened, make the backpack with the body, but don't have oppressive feeling. 
 
        In addition, backpack to tighten abdominal muscle, center of gravity moved forward a little, shoulders drooping naturally. Inclined shoulder bag to HuanJian frequently, in case of muscle force is too large, cause permanent damage. Barring special circumstances, the pack as far as possible not to exceed 10% of the weight. Feel the body's muscles taut, when tired can put down the backpack, put each minute rotational neck, shoulder, relax the body, prevent muscle strain.
 
 
 
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