Severe curtailment of oxygen, as during ascent to high altitudes or in certain illnesses, may bring on a variety of symptoms of hypoxia, or oxygen lack. This temporary deficiency is called oxygen debt. When the competition is over, however, the athletes will continue to breathe heavily until the muscles have been supplied with sufficient oxygen.
Thus, during athletic competition, the participants make use of the capacity of muscles to function even though their needs for oxygen are not fully met. In fact, in strenuous exercise the oxygen needs of muscle cells are greater than the amount the body can absorb even by the most intense breathing. But this balance need not be exact at all times. Oxygen Balance and “ Oxygen Debt.” The need of every cell for oxygen requires a balance in supply and demand.
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