According to the report of relevant research institutions, 90% of adolescents have different degrees of scoliosis, oblique shoulders, hunchback, myopia and other problems caused by sitting posture during the growth and development stage. The incidence of myopia and scoliosis in primary and middle school students in China There is a clear upward trend. According to recent surveys, the incidence of myopia in our pupils is 22.78%, and that of middle school students is 55.22%. What is even more shocking is that there are reports in the country that more than 30 adults have been blinded by high myopia. Myopia, scoliosis and psychological problems have constituted an obstacle to the healthy development of adolescents. Does the traditional desk really lead to teenage myopia?
1. The height of the traditional desk chair is fixed. The child's feet are suspended, the feet have no fulcrum, and the upper body is easy to squat forward. In addition, due to the gravity of the calf, the thigh will be squeezed with the seat of the chair, and the thigh is easy to numb. The child will move unconsciously and often.
2. The table of the traditional desk is straight. When the child is learning, the two elbow joints will be exposed on the outside of the table. The small arm will squeeze with the edge of the table. The small arm will be sore and the child will instinctively put the two elbow joints. Put it on the table, the upper body will naturally lie on the desktop.
3, the desktop of the traditional desk is flat, the child is forced to bow when reading and writing, causing the child's cervical spine to be sore.
4, the traditional chair's sitting surface is too large, the child can not rely on the back of the back when reading and writing, it is easy to cause back pain.
All of the above, long time in the past will lead to poor bone development, myopia. Therefore, a good table and chair is very important for the child's study, parents must not ignore it.
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