immediate physiological responses to training

What is the immediate physiological response of heart rate to training?

• It stops temporarily.

• It increases from the resting value.

• It remains constant.

• It decreases significantly.

What is stroke volume?

• The amount of air inhaled per breath.

• The number of times the heart beats in a minute.

• The amount of blood pumped out of the left ventricle per contraction.

• The amount of lactic acid in the blood.

How is cardiac output calculated?

• By adding stroke volume and heart rate.

• By multiplying stroke volume by heart rate.

• By dividing stroke volume by heart rate.

• By multiplying heart rate by ventilation rate.

What happens to ventilation rate during intense exercise?

• It remains unchanged.

• It decreases to conserve energy.

• It stops to prevent hyperventilation.

• It increases to remove more carbon dioxide.

What causes lactate levels to rise during exercise?

• Decreased ventilation rate.

• Increased use of the aerobic energy system.

• Decreased heart rate.

• Increased use of the lactic acid energy system.

What is the primary function of increased blood flow during exercise?

• To decrease body temperature.

• To increase lactic acid production.

• To increase oxygen delivery and remove waste products.

• To reduce heart rate.

What is the average stroke volume for a human at rest?

• 50 mL

• 70 mL

• 120 mL

• 100 mL

What is the role of vasodilation during exercise?

• To decrease resistance to blood flow.

• To reduce blood flow to muscles.

• To decrease stroke volume.

• To increase resistance to blood flow.

What is the lactate inflection point?

• The point where lactate levels rise rapidly.

• The point where lactate levels stabilize.

• The point where lactate levels decrease.

• The point where lactate levels are zero.

How does heart rate change before exercise in trained athletes?

• It stops temporarily.

• It increases slightly in anticipation.

• It decreases significantly.

• It remains constant.