Biomechanics analyses for cooperative heavy working by time dependency three-dimensional measuring.

点击翻译按钮获取中文摘要

In this study, the three-dimensional motion capturing system was developed using digital video cameras. This system enables the measurement of the movement and behavior in the subject wearing regular clothing such as working uniform under all measuring circumstances. Using this system, the knee flexion and extension were measured under two wearing clothes conditions : an actor suit and a working uniform. The reconstructed motion results have good agreement with those with X-ray medical judgments. And the load bearing function was analyzed the low-flexion posture under a static load condition using a non-linear finite element analyses of the knee joint. When the medial collateral ligament was removed the knee joint ceased the function as load bearing at applied loads. And the minimum principal stress value of the other ligaments increased compared with that in the normal knee joint.