Oxygen debt

Hyperventilation persists for a period of time following cessation of exercise and is due to the oxygen debt incurred during exercise. Specifically, oxygen is needed for the following metabolic processes  

During the recovery period from exercise, ATP (newly produced by way of oxidative phosphorylation) is needed to replace the creatine phosphate reserves — a process that may be completed within a few minutes. Next, the lactic acid produced during glycolysis must be metabolized. In the muscle, lactic acid is converted into pyruvic acid, some of which is then used as a substrate in the oxidative phosphorylation pathway to produce ATP. The remainder of the pyruvic acid is converted into glucose in the liver that is then stored in the form of glycogen in the liver and skeletal muscles. These later metabolic processes require several hours for completion. 

---

Describe the metabolic processes that lead to oxygen debt... 

C02 and water in the Krebs cycle. An oxygen debt is built up if oxygen does not become available after the anaerobic phase. 

Siegel, J.H. Fabian, M. Smith, J.A. Costantino, D. Use of recombinant hemoglobin solution in reversing lethal hemorrhagic hypovolemic oxygen debt shock. J. Trauma... 

His work on muscle function, especially the observation and measurement of thermal changes associated with muscle function, was later extended to similar studies on the mechanism of the passage of nerve impulses. He coined the term oxygen debt after his own interests in recovery after exercise. 

Reflect and Apply Short periods of exercise, such as sprints, are characterized by lactic acid production and the condition known as oxygen debt. Gomment on this fact in light of the material discussed in this chapter. 

It should be noted that in stress conditions, the RQ value can be greater than 1. This can occur when there is hyperventilation where large quantities of carbon dioxide are exhaled while an oxygen debt exists in the body. Metabolic acidosis creates an excess exhalation of carbon dioxide as a compensatory mechanism. 

Under nonoxidative (anaerobic, or oxygen debt ) conditions, such as those found in muscle tissue undergoing extreme exertion, an alternative process drives the formation of energy-rich ATP Pyruvic acid is reduced enzymatically... 

---