[Can the human posture be explained by biomechanics? (author's transl)].

Up to now, lacking a bio-mechanical model, human posture has only been examined morphologically, although the physics of posture respond to simple laws. With the help of a physical model, based on the hypothesis of a minimal rotating movement of the trunk and head from the spine, this report gives a description of a normal posture. The model can be extended mathematically to establish a computer simulation of each case examined by X-ray, showing which posture would use the smallest amount of ligamentary and muscular force. The above bio-mechanical analyses of the spine as a whole is being further examined and improved mathematically.