Respiratory System- Responses

Question 1

1 How does our respiratory system respond to a single sport or exercise session?

Answer 1

1. Increased breathing rate
2. Increased tidal volume

Question 2

2 Why does exercise increase the rate and depth of breathing?

Answer 2

Muscle need more oxygen, stimulating an increase in rate.
Carbon dioxide production stimulates an increase in rate

Question 3

3 If exercise intensity continues to rise during exercise what will happen to breathing rate?

Answer 3

breathing rate continues to rise

Question 4

4 If exercise intensity remains constant what will happen to breathing rate?

Answer 4

When exercise intensity remains constant, breathing rate levels off

Question 5

5 Name the two breathing responses to exercise?

Answer 5

Increased breathing rate and increased tidal volume

Question 6

6 Breathing rate will also rise prior to exercise. This is known as?

Answer 6

The anticipatory rise

Question 7

7 Why does an anticipatory rise happen?

Answer 7

This is due to the release of adrenaline to the heart. It triggers an increase in both breathing rate and heart rate

Question 8

8 Why does tidal volume increase during exercise?

Answer 8

Tidal volume is “the volume of air breathed in and out per breath”.
During exercise, it increases. This enables more air to pass into the lungs

Question 9

9 How is minute ventilation calculated?

Answer 9

breathing rate X tidal volume