According to experts, the shoulder bag is undoubtedly the best choice from the perspective of health and minimal impact on the body, and the shoulder bag can also reduce the burden of the spine to a certain extent in the attention posture. The shoulder bag is the most likely to cause health hazards in several types of backpacks. In backpack selection, expert advice 1, straps to be wide: backpack with too thin, the pressure on the stress point, the more likely to cause soreness and other issues. 2, the material should be light: try to choose light or decorative objects less backpack, otherwise the weight of a single backpack has been the body "too much." How to backpack bag? The posture of the backpack is also very important. For example, the shoulder bag is used as a shoulder bag. The excessive shoulder straps cause the bag to constantly shake the center of gravity. The stress on the spine is unusual, and the adverse effects are even more. Ordinary shoulder bag. So figure out how to pack a healthy backpack 1, reduce the shaking: whether it is a shoulder bag or Messenger bag, shoulder strap should not be too long, otherwise it is easy to cause excessive shaking. The proper length of the shoulder strap helps stabilize the center of gravity. The muscles of the body do not constantly adjust to the constant shift of focus, and are ultimately damaged by overwork. 2, the location of the backpack can not be too low: want to comfortably backpack bag, bag can not be too low. For example, the lower edge of the shoulder bag is preferably in the pelvic position. The Messenger bag is best placed on the lumbar side, the upper edge of the backpack is about the location of the pelvis. 3, it is best not to back in front: whether it is a Messenger bag or shoulder bag, from a health point of view it is best not to stand in front of. Because of the stress, the body will lean forward when standing behind, and it will easily cause "hunchback." 4, regular shoulder change: Everyone has their own favorite backpack habits, experts advise, if you use a single shoulder bag or Messenger bag must be regularly changing the shoulder, so can play a role in preventing cervical and spinal strain. In general, the less the bag shakes, the closer it clings to the body and the less adverse effects it has on the spine. After a long period of backpacking, you can do stretching exercises to relieve back muscles. If the backpack is put down, there will be arm pain and sore shoulders. If this symptom persists for more than half an hour, you should go to the hospital for medical examination. China Trolley Case Trading Network is an e-commerce platform of China Treasury's Trolley Case, which integrates all upstream and downstream companies in the country for genuine procurement and genuine wholesale. Provides professional trolley case trading platform and information for consumers and has a wealth of trolley case resources. Fundamentally, the quality of the trolley case can be guaranteed. So if you want to pay more attention to the trolley news, please come here! The above information is from China Trolley Exchange website.