[Effect of short submaximal stable-load exertion on blood serum insulin and human growth hormone concentration as well as on various biochemical and acid-base blood parameters in healthy individuals].

The studies on effect of short-term submaximal physiol exercise with stable load on blood serum concentrations of insulin, human growth hormone, free fatty acids, glucose and aminoacid nitrogen were carried out on 20 healthy men, aged 19--21 years. In addition, lactic and pyruvic acid concentrations and some parameters of capillary blood acid-base equilibrium were determined. It was found that short-term submaximal exercise with stable load caused the increase of HGH concentration and the decrease of IRI concentration. During such an exercise blood serum free fatty acid concentrations also decreased, while blood serum glucose and aminoacid nitrogen ones did not change significantly. Blood serum lactic and pyruvic acid concentrations and hydrogen ion concentration increased. Simultaneously, carbon dioxide partial pressure decreased and base excess increased. This pattern of changes indicates metabolic acidosis compensated partially by hyperventilation.