The statistics claim, that people who are not physically active live shorter and they are ill more often. Only an individual physical activity is useful. For choosing the right activity the doctors have to investigate the patient, analyse and store his data for the future.The aim of this work was to describe mathematically the integral estimation model, using the model of physical load effect. We created the information subsystem of human functional state model for individual person using the convolution of Meally and Moore automata. The result is the applied program for the consumer – physiologist. This subsystem can be used in e – health for modeling the virtual doctor.