Answer:
The best answer to the question: What will the measure of her aerobic capacity show? Would be: the volume of oxygen consumed by the muscles during the exercise cycle.
Explanation:
Although the body is able to generate energy for the muscles through anaerobic (meaning without the presence of oxygen for the generation o energy) processes, these are short-lived and their by-products can become harmful substances for the body. Because the energy produced by anaerobic metabolism is not much, then when the body is confronted with prolonged activity, especially exercise, it needs to switch to a form of energy production that is more efficient. This is aerobic metabolism and it requires the presence of oxygen for it. When a person, like Miranda, runs on the treadmill for a while, her body will switch from anaerobic, to aerobic processes that will require oxygen. Thus, Miranda´s lungs, and heart, will adjust to provide this necessary molecule to the muscles. When Miranda is measured on the treadmill, what the evaluator wishes to see is the amount of oxygen that the muscles are consuming during exercise, and which is indicated by the reactions of her heart and lungs during exercise.
