[Role of mental work in man's tolerance to whole-body vibration].

Phasic changes of psychophysiological parameters developed in response to vibration of 10 Hz and acceleration of 1 m/s2 for 1 h. During the first phase some parameters decreased and others increased. Later all psychophysiological parameters significantly decreased. Circulation parameters tended to decline during exposure. The psychophysiological changes were less expressed in the test subjects normally involved in mental work. This suggests that mental workers have higher tolerance to vibration effects.