Chapter 15 - Aerobic training (Respiratory adaptations)

Question 1

How does increased lung capacity lead to improved performance?

Answer 1

Increased lung volumes / vital capacity, results in an increase in the amount of air in the lungs at the end of a maximal inspiration (amount of air inspired per breath).

Enabling a greater amount of oxygen to be available for transport to the working muscles via cardiovascular system and an increase removal of carbon dioxide.

Question 2

How does increased tidal volume lead to improved performance?

Answer 2

Increase tidal volume, results in an increase in the amount of air inspired and expired per breath.

Enabling a greater amount of oxygen to be available for transport to the working muscles via cardiovascular system and increase the removal of carbon dioxide from the body.

Question 3

How does increased ventilation (max intensity) lead to improved performance?

Answer 3

Increased ventilation, results in an increase amount of air inspired and expired per min.

Enabling a greater amount of oxygen to be available for transport to the working muscles via cardiovascular system and increase the removal of carbon dioxide from the body

Question 4

How does increased alveolar-capillary surface area lead to improved performance?

Answer 4

Increased surface area will increase the rate of diffusion.

Enabling a greater amount of oxygen and carbon dioxide to be exchanged between the alveoli and capillaries to be available for transport to and from the working muscles via cardiovascular system.

Question 5

How does increased pulmonary diffusion lead to improved performance?

Answer 5

Increase pulmonary diffusion, will increase the rate at which oxygen and carbon dioxide is exchanged between the alveoli and capillaries to be available for transport to and from the working muscles via cardiovascular system.

Question 6

How does ventilatory efficiency (intercostals and diaphragm) lead to improved performance?

Answer 6

The amount of oxygen required to breath is less. Less oxygen is delivered to the muscles responsible for breathing.

Therefore more oxygen is available to be delivered to the working muscles via cardiovascular system.

Question 7

Decrease ventilation (rest and submaximal)