[Individual achievement capability and performance demand at work]

Fitness and job requirement must have a positive correlation to avoid an overstress with its negativ consequence for physical health. Very often jobs with high physical stress restult in partial stress. Jobs like controller reduce the physical capacity, if no preventive training is done. This paper gives a way to improve or conservate at least, physical fitness by short daily training--following the physical laws of training--for the purpose to balance physical and performance demand. Thereby the degree of fatigue by work can be reduced.