Exercise Physiology 1

Question 1

List at least 3 immediate cardiovascular responses to PA.

Answer 1

• Increased Cardiac Output
• Increased Heart Rate
• Increased Stroke Volume
• Increased venous return
• Increased Blood Pressure
• Blood redistribution
• Increased arteriovenous oxygen difference

Question 2

Explain what Increased Stroke Volume is?

Answer 2

The amount of blood that is ejected from the left ventricle with each beat of the heart.

Question 3

Generally how many breaths per minute is ejected during exercise?

Answer 3

Around 40-50 breaths per minute

Question 4

In Increased Blood Redistribution where does the blood go to during PA?

Answer 4

The blood goes to the working muscles.

Question 5

List at least 3 the immediate respiratory responses to PA.

Answer 5

• Increased Respiratory Rate
• Increased Tidal Volume
• Increased Ventilation
• Increased Gas Exchange/pulmonary diffusion
• Increased Oxygen Uptake

Question 6

True Or False: A fit male during PA can eject 110mL of blood with each beat?

Answer 6

False

Question 7

How much blood is pumped every minute for a fit female at rest?

Answer 7

Approx. 4L/min

Question 8

Explain why Oxygen Uptake occurs?

Answer 8

Because the Anaerobic system becomes the dominant provider.

Question 9

Explain in Exercise Physiology terms what “Plateauing” is?

Answer 9

In exercise physiology, plateauing refers to a situation where an individual’s progress or performance levels off or reaches a point of stagnation despite continued efforts and training.

Question 10

During exercise what has the Tidal Volume reached up to?

Answer 10

Increases up to 3-4L/min

Question 11

Explain the difference between “Increased Tidal Volume” & “Increased Ventilation”?

Answer 11

Increased Ventilation is the amount of air inspired/expired in a minute (L/min), while Increased Tidal Volume is the amount of air inhaled and exhaled during
normal respiration.

Question 12

What is Diffusion?

Answer 12

Movement of a gas from high concentration to low concentration.

Question 13

At rest a fit individual has a heart rate of what?

Answer 13

Approx. 50-60 bpm.

Question 14

Complete the sentence: During Stroke Volume, a fit male during exercise can reach up to *blank & a fit female during exercise can reach up to *blank.

Answer 14

150mL/beat & 110mL/beat.

Question 15

What is Increased arteriovenous oxygen difference?

Answer 15

A comparison of the oxygen in the arteries compared with the veins provides a measurement of muscle oxygen use.

Question 16

During Increased Blood Pressure what supplies blood to the working muscles?

Answer 16

Arterioles.