[Effect of prolonged moderate physical work on psychomotor and mental performance]. 
The examinations were carried out in the group out in the group of 20 men aged from 19 to 27 with middle physical fitness level.  The studied concerned the simple reaction time to auditory and visual stimuli, the Coordination Test performed with variable speed, the work output in Paule's Test and the learning and recalling of nonsense syllables.  The positive effect of physical effort on the results obtained in the psychomotor task (Coordination Test) requiring a quick performance has been observed.  The physical work had no significant effect on the duration of reaction time as well as on the work efficiency in the applied mental tests.