Your backpack should be changed

 　　As the so-called "cures all diseases",

　　for contemporary urban beauties, if you are broken in

　　love , buy a bag; if you get a

　　promotion and raise your salary, buy a bag; during the

　　holidays , buy a bag

　　...

　　I won’t talk about consumption concepts. However, I don’t know if you have felt that as everyone buys more and more bags, each bag is getting heavier and heavier.

　　Keys, lipsticks, mobile phones, charging treasures, earphones, thermos cups, these are just "basic equipment". Women in the workplace put the computer on, young artists put on the camera, and the health party brings lunch... Long-term backpacks carry heavy loads, and the physical burden is not light.

　　As for adult men, it seems that they generally don't like to carry bags, as long as they can put things in their pockets. Furthermore, males have relatively strong muscle strength, and the weight of backpacks has less impact on joints and bones. However, men often need to bear the responsibility of helping their partners with backpacks during daily travel, especially long-distance travel, so they should also pay attention to the impact of backpacks on their own health.

Wrong or sick backpack

　　Although bags can "cure diseases", the possibility of "causing diseases" cannot be ignored if they are not selected and used properly.

　　· Handbags

　　These bags usually have limited capacity and are not very heavy. However, most women don't like to carry a handbag with their hands, but like to "hang" it on their arms. This kind of backpack, on the one hand, can free up one hand to do other things, on the other hand, it is also to shape the overall shape. After all, it looks more elegant and casual with the handbag on the arm, and it will not deform the clothes.

　　In fact, the movement of the single-arm satchel will keep the wrist in a dorsiflexion state for a long time, causing the tendons of the wrist extensors to continue to be tense, and the lateral epicondyle of the humerus at the elbow is repeatedly pulled by force. Over time, it may lead to chronic cumulative damage and cause lateral epicondylitis, commonly known as tennis elbow. Such patients experience pain in grasping and lifting, and can't even perform actions such as twisting a towel.

　　· Shoulder bag

　　Human shoulders have a certain slope under normal circumstances. When hanging the bag on one shoulder, in order to prevent it from slipping, people will instinctively shrug their shoulders on one side, and the neck will also tilt unconsciously. Although the range of motion is not large, if the bag is heavy and the backpack is used for a long time, the trapezius, rhomboid, levator scapula, and muscles at the back of the neck may be overstretched, causing muscle strain.

　　This can lead to high or low shoulders, affecting not only posture but also the cervical and lumbar spine. Our hospital once received a patient who carried a laptop computer to work for a long time and developed scoliosis as a result. 　　Backpack When carrying a backpack

, the weight distribution is balanced, and the shoulders and lower back are involved in bearing the weight, which is most suitable for carrying heavy things.

Whether it is a worker, a student party or a travel group, backpacks are the most commonly used choice.

　　However, the weight of the backpack cannot be increased indefinitely. The upper limit weight that is most beneficial to health accounts for about 10% of the body weight. A backpack that is too heavy will make people habitually lean back and take advantage of it. Over time, it may lead to accelerated degeneration of the small joints in the spine and cause the pelvis to tilt forward.

　　Especially for children and adolescents, the correct selection and use of backpacks will help protect the growing spine and reduce the risk of scoliosis.

Focus on weight, style and pack style

　　Starting from the actual needs, I will provide you with a "package guide": don't talk about price or brand, just focus on whether it is beneficial to human health.

　　· Weight Of course, the lighter the weight of the

　　bag , the smaller the burden on the body. The capacity seems to be very small, and the accessory bag that can hardly hold anything will hardly cause any physical burden.

　　If you have to carry more daily necessities, the weight of the backpack should be controlled at about 10% of the body weight, and the standard of the shoulder bag should be lower, and the weight should be controlled at about 5% of the body weight.

　　In addition to not loading too many items, you can also pay attention to the weight of the bag itself. If a single empty bag is heavy, it is not suitable for daily use.

　　· Style In

　　general , backpacks are easier to use than single shoulder bags, and bags with wider shoulder straps are easier to use than narrow shoulder straps, because the pressure of this style of bag is relatively dispersed, and the body will not be too uncomfortable when used.

　　For children's backpacks, it is best to choose a style with a slightly harder back and a better fit to the back. In addition, the side and front of the backpack are slightly soft, and there are corresponding compartments and fixing devices inside, which can also prevent books from shaking.

　　Those who often need to carry heavy items such as computers, or long-distance travelers, can choose products with hip belts, chest belts, and lumbar support, which can reduce the burden caused by long-term weight-bearing.

　　· Backpack mode

　　If you are used to using a shoulder bag, it is best to change the shoulder of the backpack frequently. For example, on the way to and from get off work, carry the bag on different shoulders.

　　When using a shoulder bag, the cross-body posture is better than the one-sided back. The load-bearing shoulder and the bag are located on both sides of the body, which has relatively little impact on bone health.

　　In addition, properly shorten the strap to avoid swaying the bag while walking, which can reduce the incidence of neck and shoulder muscle discomfort.

　　Finally, in order to avoid keeping the same posture for a long time, friends with conditions can also consider buying some bags of different styles, and change the posture every few days.