I am a student from Fudan University, China. When I was sixteen years old, a friend of mine had serious back pain due to being sedentary and holding harmful postures, and eventually he stayed at home for half a year, which not only delayed his studies, but also prevented him from participating in strenuous activities. Many other students and I also thought that the school seats were contributing to this and inappropriate, so in 2017, some of my classmates and I formed an interest group to study the student seat problem and to propose solutions.
This blog wants to warn people to pay attention to children's sitting posture, for this problem is severe and may cause irreversible physical harm to children. We hope to design a proper model to serve as a solution, and we also hope to find a simple way to scientifically relieve fatigue and pain.
In China, nowadays, students generally have little exercise time, which means they have to sit in the chair for quite a long period of time . According to our survey, being sedentary and wrong sitting posture leads to implicit muscle misstretching and skeletal development problems, which not only cause a strong sense of discomfort, but also serious harm to students. Some medical science reports have clearly proved that being sedentary too long can cause negative effects such as the inability to concentrate and hyperactivity disorder . In addition, in the light of existed research and interviews, we found that spine disease is showing a younger trend .
Through surveys and relevant news reports, our team also found that not only in China but also in many Asian countries such as Japan, Korea, India and so on, seats are not adjustable and crowded  .(The following pictures are from local websites or newspapers)
Students spend a long time in class, which means that in many Asian countries, students have to sit in a fixed position for a long time. This problem is not only faced by Chinese teenagers, but also has considerable urgency and international reach .
There are some researchers that recognized this as an important matter and wanted to solve it, but the common solution was to teach children the right sitting postures. However, according to my personal experience as a student, I find most of my classmates didn't take the initiative to sit upright strictly. Besides, on the basis of our survey, even adults can hardly keep the right postures (shown in the following chart) so I think we should change our mind to design a proper seat model to meet students' need and implicitly improve their sitting postures.
So based on the existing data, we drew a sketch model of the general student seat, and compared it with the existing ergonomic seat model on the market, trying to find out why ergonomic student seats are difficult to be widely use in schools.
We have also consulted doctors, teachers, students and the salesmen who sell ergonomic seats in Shanghai. With reference to various perspectives, we believe that the reasons are as follows.
Firstly, the cost of promoting ergonomic student seats is too high.
Secondly, the traditional belief is that a child should maintain a proper sitting posture, which is a sign of a child's sensibility and upbringing.
Besides, classroom space and education resources are limited. Ergonomic chairs on the market occupy large areas, if the supporting facilities and mechanisms are not well equipped and mature, rash promotion will lead to waste of resources.
Based on these insights we have a preliminary ideas to resolve this. First, if it is possible, we should design a scientific seat suitable for classroom use. Secondly, considering that it still takes some time to update seats, students should be taught to learn how to use the seat comfortably, especially if students have to sit in chairs for a long time.
This part mainly introduces the reasons, background, preliminary ideas and preparing work of our research on student seats. In the next part, we will focus on how to improve the seats in detail.
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