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I am very grateful to the organisers of the Meeting for having invited me to participate in this debate on “oxygen debt” with Professor Harris and other distinguished colleagues. Since the meeting in Gäteborg, in 1971, many statements have been made...
As a defender of the oxygen debt concept, I have the following aims in this presentation: 1) Critical revision of the classic definition of oxygen debt 2) Establishment of the role and the physiological significance of the oxygen debt, particularly of its "alactic" and "lactacid" fractions
Oxygen debt is a physiological phenomenon which occurs when someone has consumed oxygen at a rate faster than it can be replaced, leading to a deficit in oxygen which causes increased respiration as the body attempts to replace the used oxygen.
Oxygen debt occurs when the body transitions from aerobic to anaerobic metabolism during prolonged or intense physical activity. The recovery phase involves increased breathing rate and heart rate to supply oxygen needed to convert lactic acid back into pyruvate and replenish ATP stores.
The term implies that the oxygen has been borrowed from a store during activity and replaced afterwards. Indeed, some of it is used to reoxygenate myoglobin, the special red pigment which acts as a small oxygen store in muscle.
OXYGEN DEBT definition: 1. the extra oxygen that the body uses during exercise, which must be replaced when resting 2. the…. Learn more.
Definition. Oxygen debt refers to the amount of oxygen required to restore the body to its pre-exercise state after a period of intense physical activity. This concept is linked to the body’s metabolic processes, especially during recovery, as it involves replenishing oxygen stores, clearing lactic acid, and restoring ATP levels.
