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The reduction in the rate of systolic ejection following elevation of aortic pressure leads to changes in cardiac output opposite to alteration in peripheral resistance, thus tending to maintain a relatively constant arterial pressure.
2. Assume that for one beat, the stroke volume of the left ventricle is greater than that of the right ventricle. Explain why in a normal heart this would be corrected on the next beat. 3. Explain why elite athletes have a lower than normal heart rate, yet have a higher than normal ability to increase cardiac output. Title PowerPhys Experiment 4: Effect of Exercise on Cardiac Output