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IntroductionIn the principles of the organization of armed struggle of the defense forces of most developed countries of the world, considerable attention is paid to the evaluation of combat readiness of the military personnel. This procedure is conditioned by such interconnected goals of the armed struggle as the maximum realization of the combat potential and the minimization of personnel losses. The purpose of the work is to determine the physiological cost of the activities of the soldiers of the Defense Forces of Ukraine with the help of miniature electrocardiographic hardware and software complexes.MethodsIn the research, ultra-miniature ECG devices worn on the body for a long time, so-called wearable “on-body” ECG patch devices, were used in various combat conditions. When analyzing the data, the principle of multi-faceted ECG analysis was implemented, which allows you to obtain complete and physiologically based information, which includes 4 blocks: heart rate variability (HRV), amplitude-time indicators of the ECG, heart rhythm disorders, and psycho- emotional state.ResultsIn this study, a complex index of the functional state formed based on estimates of generally accepted and original indicators of heart rhythm variability, the shape of the teeth and complexes of the electrocardiogram, as well as an index of the psycho-emotional state formed according to the same principles based on the analysis of heart rhythm variability according to the modified McCraty algorithm (USA) was evaluated. Examination with the help of the complex is carried out in a state of rest, sitting or lying down.DiscussionThe sensitivity of the developed monitoring system is good enough to detect the changes in the functional state both in the case of short-term (for hours) intense physical or psycho-emotional stress and more chronic (for days and weeks) stress depending on the nature of the task being done. The proposed methods and means can be considered an important tool to support the commander's decision-making regarding the ability of personnel from the point of view of their functional state to perform combat tasks.

The article is devoted to the main tendencies оа changes in the forms and methods of combat activity and their influence on the increasing level of psychological trauma of the personnel of the forces (troops). The article analyzes a number of approaches to assessing the level of psychogenic losses of troops in combat circumstance. The application of these approaches optimizes the procedures for protecting the moral and psychological qualities of servicemen from the negative informational and psychological impact of the enemy. Were identified approaches to the structuring of factors that predetermine psychogenic loss: psychophysiological, professional, social, procedural. The advantages and disadvantages of these approaches are identified to determine the static characteristics of the system of prediction of psychogenic losses of troops (forces) in combat circumstance. The ways of implementation of separate approaches to prediction of psychogenic losses of troops (forces) in the activity of the Armed Forces management system of Ukraine are proposed, taking into account the prospects of implementation of NATO standards and the theoretical views of domestic experts. It is suggested to further include the duration and intensity of the conduct of hostilities to external factors that cause psychogenic losses in a particular approach. The internal ones include the level of staffing of the bodies of management of the officials prepared for the forecasting, prevention and provision of psychological assistance to the psychologically traumatized; the level of formation of assets for control of combat stress; the level of their logistical support; the level of organization and implementation of moral and psychological support; the level of organization of events information and psychological combat, etc.