THE REMOVAL OF LACTIC ACID FROM THE BODY DURING RECOVERY FROM MUSCULAR EXERCISE

Abstract

Lactic acid (LA) removal in the body of the mouse is of the same character and speed as its removal from the blood of man. There is thus a free diffusion of LA between muscles and blood. At the beginning of recovery when there is rapid payment of O2 debt, no corresponding rapid removal of LA occurs, confirming the view that this fraction of the O2 debt is not related to the LA mechanism. A delay in LA removal lasting some minutes after exhausting exercise is interpreted as delayed LA production. The speed of removal of LA during recovery appears to be higher the smaller the amount of LA produced during exercise.