Bag knowledge: the relationship between backpacks and health
1, material to light: some buy bags experience of a friend should be understood, with the weight of the backpack itself has let the body too much, if the weight of luggage is heavy, it is not only in the use of very tired, but also to the health and also a great burden, because some of the backpack increasing the number of unnecessary decoration increased weight is very undesirable.
2, strap to width: backpack straps width is a scientific basis, the more wide backpack straps, the more can make the shoulders of the force surface increased, reduce shoulder partial force, shoulder damage.
Backpack posture is very important, especially the young and active, so may use some strange posture carrying his own backpack, but poor posture may cause serious influence is spinal, if things go on like this serious health risks for adolescents. For example, some shoulder bags and shoulder backpacks, some people because of good-looking, deliberately single shoulder backpack, shoulder bag shoulder strap to lengthen, but this makes the backpack constantly shaking, long term will cause great pressure on the spine. Buy some long straps and backpacks, too. Notice that they are much more dangerous than regular backpacks.
The main two points are needed to carry the backpack:
1, reduce shake: no matter backpack or shoulder bag, don't put too long straps, I'm sorry, can make backpacks less shake. Adjust the length of the straps to the right length to help you stabilize the center of gravity. The body's muscles do not adjust to excessive motion and feel fatigue ahead of time.
2, backpack backpack position not to put too low, the position control is often the lower edge of the backpack in the waist is better, but some students love the backpack on the location of the pelvis, which may have a serious impact on the health of the pelvis.
3, backpack front back: some people like to backpack before the back, and occasionally the front back, may relieve the shoulder fatigue, but long ago, the back may cause adverse effects on the spine, and even lead to a long bow phenomenon.