INTRODUCTION The science of biomechanics was first founded in the scientific works of Aristotle and Galen, devoted to the analysis of the movements of animals and plants. Leonardo da Vinci (1452-1519), who studied the structure (anatomy) of the human body in relation to its movements, made a great contribution to biomechanics. He explained the mechanics of the human body during the transition from a sitting to a standing position, walking up and down hills, and jumping. R. Descartes (1596-1650) founded the reflex theory, showed that a certain factor of the environment affecting a person's sensory organs can cause his movements, and this is how the origin of free movements is understood. The famous Italian physician, mathematician, physicist D. Borelli (16011-1679) founded biomechanics as a science with his book "On the Movements of Animals" and had a great influence on its development. D. Borelli viewed the human body as a machine and sought to explain breathing, blood circulation, and muscle function from a mechanical perspective. Biomechanics is the science of mechanical movements in biological systems, and uses the principles of mechanics as its methodological apparatus. Biomechanics is a branch of biology that studies the mechanical properties of tissues, organs, and the entire organism and the mechanical phenomena that occur in them (movement, respiration, etc.). This science. Using the methods of theoretical and applied mechanics, it studies the deformation of the structural elements of the body, the flow of fluids and gases in the body, the movement of body parts in space, the analysis and control of movements in general, and other issues that are possible with this method. On the basis of such studies, it is possible to construct biomechanical models of organ systems, which are of great importance for studying their knowledge and control. The field of biomechanics is the study of the movements of humans and animals. Currently, the scope of application of this science is expanding in the field of It also covers the structure of the upper respiratory tract, the circulatory system, specialized receptors, and other organs.