Iaremyn S. Features of formation movement trajectory common center of mass human in people with the diseases of the lumbar spine.

Object: The process of forming of a displacement trajectory of the projection of a common center of mass of a human during standing. Aim: to study the effect of the human spine segments mobility on the displacement trajectory of the projection of a common center of mass of a human while maintaining the vertical posture when it is normal or has diseases of lumbar spine. As a result of the carried out research new knowledge about features of maintaining the vertical posture by a healthy man and a patient having diseases of lumbar spine. It was proved that changes of statogram parameters compared to healthy men statogram were observed in people having diseases of lumbar spine. There is an increase in the spread of the projection of spots of common center of mass and planes statogram spots, a significant increase in the asymmetry of both geometric and energy parameters of the projection spots common center of mass. The conception of forming of a displacement trajectory of the projection of a common center of mass of a human on a support plane as a result of the multi-unit pendulum, each link of which specifically affects the ability to maintain balance while standing vertically was developed and scientifically proven. Conceptual and mathematical models of the effect of compensatory-adaptive mechanisms to maintain the human vertical posture was creation. New criteria for statogram geometry evaluating (planes and their relationship, asymmetry coefficients) were developed. Each parameter was statistically justified concerning his use to assess the state of the locomotor system of patients with lumbar osteochondrosis. The obtained data were processed statistically with the aid of artificial neural networks. It allowed us to reveal the probability of hip joint pathology in patients with lumbar osteochondrosis. Developed new methods of assessment allowed us to increase level of diagnosis of the human locomotor system injuries and monitoring of the treatment effectiveness in patients with diseases of the lumbar spine (patent № 79681 UA). For clinical examples of elderly patients with osteochondrosis of the lumbar spine the necessity of statographic study to select the orthosis and control the conservative treatment has been proven. Results of research were put into practice in laboratory biomechanics SI "Sytenko Institute of Spine and Joints Pathology NAMS of Ukraine", Vinnytsya City Clinical Emergency Hospital, and also in the educational process of the Department of Orthopedics and Traumatology of the Vinnitsa National Medical University, Department of Traumatology and Orthopedics of Zaporozhye State Medical University, Ministry of Health of Ukraine. Traumatology and orthopedics.