Erythrocyte 2,3-diphosphoglycerate (2,3-DPG) after submaximal exercise in human subjects

In 79 swimmers aged 13--15 years the concentration of 2,3-DPG was determined in the erythrocytes at rest and 1 minute after the end of 7 minutes of submaximal exercise on an arm ergometer. In the examined subjects no significant changes were found in 2,3-DPG concentration in the erythrocytes. A non-significant tendency was demonstrated for a decrease in 2,3-DPG content of erythrocytes related to the post-exercise rise of blood lactate concentration.