destruction, deformation, plasticity, change of elasticity modules, deterioration, latent destruction stage. 

 In the course of life the deterioration of contact connections which are in the person’s joints happens. This process takes a long time. The damages are accumulated gradually and represent a big danger for practical activities. The research is made by analytical methods with the probability theory device. The practical application is possible when treating the person’s locomotive system, calculating artificial limbs, creating the anthropomorphous mechanisms.