Much of the increase in blood volume that occurs during the first two weeks of endurance training results from increased red blood cell volume. True False

As part of the training effect, the body produces an increased volume of blood. Discuss how this would be an advantage for an endurance athlete.

Following endurance training, heart rate at a given oxygen uptake and cardiac output is lower because:Group of answer choicesstroke volume is increasedthe heart is less sensitive to adrenergic stimulationred cell mass is increased

Based on what you learned earlier in this video, why is an unregulated increase in red blood cells a potential health concern?Too many red blood cells can thicken the blood, making it harder to move through the heart and blood vesselsExcess red blood cells will increase muscle strengthToo many red blood cells will carry too much oxygen for the body to handleExcess red blood cells will decrease muscle fatigue

Exercise trainingMultiple Choiceleads to a decrease in vital capacity.All of the choices are correct.increases the body’s efficiency in delivering oxygen to the tissues.usually results in an increase in residual volume.

During heavy-intensity exercise, increases in cardiac output are associated with increases in_________a.the % of cardiac output increases, and the volume of blood increasesb.the % of cardiac output decreases, and the volume of blood increasesc.the % of cardiac output is unchanged, and the volume of blood is unchangedd.both systolic pressure generation and stroke volume.