Evaluation study on comfort of flexible Knee Joint Protector

In order to evaluate the comfort of knee joint protector more accurately, the paper proposes a comfort evaluation method, which is based on pressure distribution on type value points of knee joint protector. In this research, a 26-year-old healthy male postgraduate was used as the subject. Firstly, the point cloud data of knee morphology of the subject was obtained by 3D scanning and morphological reconstruction was performed. Secondly, the relationship during knee morphology, protector morphology as well as pressure was established, and the morphological mapping curves of the flexible knee joint protector were constructed. Thirdly, the pressure distribution calculation on the key data points were carried out, and were classified with high, normal and low pressure values. Then, by changing the morphology of knee joint protector, not only is the high value of regional pressure reduced and the comfort improved, but also the low value of regional pressure is increased in order to improve the function of the protector. The research results provide theoretical reference for the study of the comfort of flexible knee joint protector.