[The effect of physical loading "till breakdown" on the mental work capacity of students with different levels of motor activity].

It is shown, that the physical load "to overflowing" is connected with heterogeneous changes in the mental capacity of students. In students with the high preventive level of the working capacity an increase of the mental capacity by the model physical load on the bicycle is due to not only an increase of the physical capacity, but also to accumulation of the tiredness after load. Stimulation of the mental capacity necessitates playing and cyclic loads, or the application of stepwise increasing load (2 w/kg, 6-9 min).