[Oxygen supply and physical working capacity in patients with diabetes mellitus].

Proceeding from a study of oxygen supply of lower limb tissue (pO2 in polarography, oximetry in the capillary and venous blood), external respiratory indices on Spirolyte and acid-base balance on a Corning microgas analyzer in 72 patients aged under and over 40 with diabetes mellitus with compensation and decompensation of carbohydrate metabolism, correlation between a decrease in physical working capacity and disorder of tissue oxygen supply (resulting from the reduction of CVS potentialities and appearance or progression of circulatory and tissue hypoxia) was revealed. These changes were accompanied by a compensatory decrease in the level of standard bicarbonates and pCO2.