Abstract
This study is focused on the chairs for students, especially, middle school students who grow rapidly compared with other group. We make a certain definite possibilities by the scientific and medical comparison of the approved chair with existing chair about the function of feet-height control & the application of the flexible back. The object of this test is middle & high school student (ratio of gender is the same) in Inchon. And the study types are two. One is to bring a matter and to suggest a design as alternative, the other is to verify propriety of the alternative. The major finding from the research are summarized as follows: 1) K·S standards for existing chairs are not proper to the growth rate of present juveniles, and they don't cope with proactive the discrepancy of growth pace. 2) Existing chairs have caused troubles by using only the fixed back of a chair. This troubles made bad influences on juveniles in a growth period. 3) Even existing chairs can adjust the back of a chair, they can be easily broken , and if they adjusted once, they can't be easily controled. Furthermore, it is Impossible to manage them because of the rust of control parts. 4) In the case of supplying the same sizes of them, juveniles who are different to growth rate respectively, can't accept the chairs. Even supplied adjustable chairs, they cant be ideal types of chairs in Open Classroom mode.
