To date, actual work in labor physiology is a study of aging rate influence on working ability of person. However, the lack of integrated assessment criteria forces advanced study of psychophysiological indicators of professional adaptation in people of all ages in order to prevent professional fatigue.
Methods. Participants were 120 persons engaged in various kinds of mental work aged 21 to 60 years: namely, teachers, scientific researchers, operators, neurosurgeons. Mental performances were studied with computer-based system of psychophysiological diagnostics of operator activity. Aging rate was calculated by method developed in the Institute of Gerontology of the Academy of Medical Sciences of Ukraine.
Conclusions. Аnalysis of psychophysiological indicators of mental activity allows defining age specificity in the periods of the first mature age (I) – 21-35 years and the second mature age (II) -36 – 55 years (for women) and 36-60 years (for men). In the period (I) high mental activity is provided by high functional status of visual information processing with low indexes of latent periods of simple reaction time (SRT) and high short-term memory performance. In the period (II) mental activity is maintained at a high level of reliability due to the attention and perception functions which provide work stability.
The analysis of indexes of functional age of the inspected persons allows to establish influence of aging rate on professional adaptation to the terms of labour activity. In the period (I) normal aging rate was revealed in 94 % of scientific researchers and teachers 87 %, while neurosurgeons and operators showed 82 % and 80 % respectively. However, in the period (II) the percentage of rapidly aging subjects tend to increase up to 25 % in doctors, neurosurgeons and operators. Despite age involution of certain physiological systems, mental activity of professionals after age of 35 is still characterized by stable psychophysiological indicators of professional activity (perception, attention, short memory), which primarily confirms regulatory-adaptation aging theory of V.V. Frolkis.