Nezavitina T. Psychophysiological assessment of tress resistance within psycho-hygienic measures system for improvement the occupational reliability of sea navigators

Thesis is about resistance to work related stress evaluation as a basis for development and implementation of psycho-hygienic measures complex for improvement of safety and health management of sea navigators' work aboard the ships and radar simulator training .The complex hygienic assessment of the work conditions and work-rest distribution of navigators (masters, mates and pilots) as leading ship operators responsible for safety of navigation in 'human-ship' system is given in this study. Objective information about the dynamics of psycho-physiological functions of the contingent investigated was obtained, which shows that stress effects in captains and mates depend mostly on total time spent aboard a ship during voyage, while the pilots' response to stress and fatigue is related to shift work at non-standard time. Analysis of the data reveals the three stages of the functional changes in human organism and confirms the optimal (up to 4 months), critical (4-6 months) and dangerous (more than 6 months in at sea) period of the total duration of a voyage for psychophysiological state and psychosomatic health of navigators. The possibility to use training sessions at simulators, not only for the development of professional skills and behavior in navigational stressful situations, but also in terms of the development of professionally important qualities, resistance to stress, the formation of a functional system to ensure readiness of navigator to be successful at sea as ship operator. Guidelines on Stress resistance and Fatigue prevention were developed.