Abstract

Our experiments support the contention that both potassium and lactic acid aresecreted simultaneously. The secretion of lactate (anaerobic work) favours theexcretion of K+ ions. The composition of sweat during exercise is different from environment hyperthermic sweat. These differences in ionic composition are supported by our findings; a. that the lactate produced by anaerobic glycolysis is secreted into the intercellular canaliculi with K+, and its quantity depends upon training and on the state of both muscular and eccrine gland tissue. b. that under aerobic conditions the pyruvate and glucose are secreted in greater quantities than lactate is excreted. c. that the Na+ excreted is relatively independent of aldosterone, and its regulation is essentially thermic. Verf.-Referat