Have you ever had a burning sensation in your muscles during intense exercise?
When our bodies perform strenuous exercise, we start to breathe quicker as we attempt to shuttle more oxygen to those working muscles. The body prefers to generate most of its energy using aerobic methods, meaning with oxygen.
As we work harder and harder, our muscles require energy production faster than our bodies can adequately deliver oxygen. In these cases, the working muscles generate energy anaerobically.
This energy comes from glucose through a process called glycolysis, in which glucose is broken down into a substance called pyruvate through a series of steps. When the body has plenty of oxygen, pyruvate is shuttled to an aerobic pathway to be further broken down for more energy.
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