[Physiology of labour: modern theoretical and scientific-practical aspects].

Physiology of labour is the science that studies human being in the professional activity process. Theoretical and practical aspects include two fundamental and interrelated trends based on the theory of functional system. The first area concerns the development of criteria-based foundations of differential diagnostics of organism' various functional states, the return of functions and reserve opportunities.

[The physiological features of overstrain formation in mental work and its prevention].

Psychophysiological and biochemical studies have shown that significant neuro- emotional loads produce such functional status, which can be called overstrain. It was found out at the first time that the physiological and biochemical characteristics of overstrain based on the main parameters in mental work. The research proved the preventive measures of human body overstrain and can help to prevent the diseases related to work.

[Methodic approaches to evaluation of visual performance in professional computer users].

Occupation-related and physiologic studies in workers using personal computers revealed variable degrees of changed visual performance in accordance with work conditions class and integral parameter of work intensity. Findings are that the performance change is caused by lower accomodation volume and decrease in temporary characteristics of clear vision stability. Correlation was established between work conditions class and percentage of the performance decrease during the working shift in videodisplay users.

[Forecasting decrease in performance and health disorders under exposure to work intensity factors in accordance with work conditions class].

Results of complex physiologic and ergonomic, clinical and functional studies helped to justify approaches to quantitative evaluation and assessment of posssible decrease in performance and health disorders in workers in accordance with work conditions class of mental work. Linear regression dependence was established between work intensity class and performance decrease. The linear regression equation obtained enables to calculate a percentage of performance decrease in various work intensity classes.

[Labor physiology role in workers of different type labor activity workability and health. Progress and prospects].

There are presented the data of workers overstrain and fatigue conditions mechanisms based on physiological, psychological and ergonomic aspects of work processes in different types of activities (mental, visual-strained, physical). 15-year historical analysis, current state and prospects of labor physiology methods development are shown. Complex physiological and ergonomic investigations have allowed developing the measures of work ability raise and diseases prevention for workers various professions.