[Neuroendocrine regulation under maximal and subjectively optimal physical loads].

The responses of neuroendocrine system to maximum and subjective-optimum physical loading were found to be similar in young men and characterized by activation of adrenocortical, somatotropic and thyroid functions, particularly under maximum loading. The subjective-optimum loading was dosed out by the subjects themselves, differentiated individually and averaged 62% of the maximum oxygen consumption. The parameters of subjective-optimum physical loading were close to the threshold level necessary to stimulate neuroendocrine system and ensure an increase of somatotropine, cortisole, thyroxine and aldosterone concentration in the blood.