[Evaluation of stress at the workplace: systemic approach]

According to Functional Systems Theory suggested by P.K.Anokhin, the authors assessed physiologic parameters of workers at the workplace in accordance with results of occupational activity portions. Correlation between pulse and breathing rates appeared to be an objective criterion of emotional stress and fatigue. The specific experiments on animals and observations of workers in real industrial conditions revealed depression of correlation coefficient "Pulse Rate-Breathing Rate" in emotional stress. That coefficient appeared to be significantly lower in beginners and poorly trained subjects if compared to qualified professionals and well trained workers.