The article gives the differential equation of bending of a thin plate at nonlinear creep. This equation is suitable for arbitrary dependencies between stresses and creep deformations. Derivation of the equation is based on simplifying hypotheses Kirchhoff-Loves technical theory of plate bending. Solution is made numerically by finite difference method. Calculations were performed in mathematical package MATLAB. As the material was taken epoxy polymer EDT-10, for which is valid the physical law of Maxwell-Gurevich. It is shown that with the growth of displacements the maximum stresses in the polymer plate decrease.

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Abstract. Prevention of falls aims to increase the strength of large groups of muscles, mainly in the lower limbs, as well as to improve gait, balance, and coordination parameters. Nordic walking (NW) is a new type of walking training; the main purpose of NW is to involve the muscles that are not used during normal walking, which enables the performance of high intensity exercises at a relatively low level of perceived exertion. The article deals with the relevance of the problem of raising the health level and working capacity of mature and elderly-aged population. The importance of regular physical exercises as a universal means of satisfying the human body in motion has proved to be substantial. The research results in a positive impact of NW training on the functional status and health of women under the age of 50 -60, the optimal structure of correctly graduated exercises during Nordic walking trainings in winter and snow-free periods. The quality of women's life is determined and improved. NW is a form of physical activity which is recommended along with physiotherapy for the elderly to prevent musculoskeletal disorders, vascular diseases, cardiovascular diseases, thus improving people's physical, and, hence, social welfare.

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An effective method of the layered structures mechanical properties determination is presented. The method is based on the nonstationary analysis of the structure response that is acted by impact load on the surface of multi-layered structure. The assessment of the design parameters using a genetic algorithm is performed. During the solving procedure there are several methods for breeding and selection processes are used, that demonstrated different results. The most appropriate parameters for described algorithms are selected and analysed.