Effects Of Different Exercise Intensities And Recovery On f TV And VE (graphs) Flashcards Preview

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1

Describe the graph of breathing frequency as exercise intensity increases

1. F increases linearly with exercise intensity
2. F plateaus as exercise intensity continues toward maximal intensity
3. F plateaus during sustained sub-maximal intensity

2

Why does f increase with exercise intensity (2 things)

1. Increased demand of O2 from muscles
2. Respiratory system must get a greater volume of O2 into the lungs

3

Why does f plateau with exercise intensity

There is a minimum time for inspiration to ensure enough O2 enters the lungs

4

Why does f plateau during sustained sub-maximal intensity

Because the supply for O2 meats the demand for O2 and so the muscles get enough O2

5

Describe the TV graph of exercise intensity

1. TV increases linearly with exercise intensity
2. TV plateaus as exercise intensity continues to rise

6

Why does TV increases with exercise intensity (2 things)

1. O2 demand at muscles increases
2. Respiratory system must get a greater volume of O2 into the lungs

7

Why does TV plateau as exercise intensity continues to rise

Increased f means there is not enough time during inspiration or expiration for a greater volume of air to be breathed in or out

8

What happens to f and TV during recovery

TV and f return slowly to their pre-exercise values

9

Explain the five steps of an aerobic respiration graph on VE

1. Anticipatory rise due to adrenaline
2. Fast increase due to increase in demand of O2 at muscles
3. Plateau as supply of O2 meats demand of O2 from muscles
4. Fast decrease due to decrease in demand of O2 from muscles
5. Slower decrease to keep O2 levels higher to remove lactic acid

10

Describe the five stages of an anaerobic respiration graph on exercise intensity

1. Anticipatory rise due to adrenaline
2. Fast increase due in increase in demand of O2 from muscles
3. Slower increase as O2 supply never meets O2 demand from muscles
4. Fast decrease due to reduction in demand of O2 from muscles
5. Slower decrease than with aerobic respiration as needs to keep O2 levels elevated to remove more lactic acid

11

Describe the graph of exercise intensities on VE

1. VE increases linearly with exercise intensity
2. VE plateaus as exercise intensity increases towards maximal intensity

12

Why does VE increase with exercise intensity (2 things)

1. F and TV are increasing
2. VE is f x TV

13

Why does VE plateau during sustained sub-maximal intensity

TV and f plateau

14

Name average values for f,TV and VE for a untrained athlete at rest

1. F is 12 breaths per minute
2. TV is 0.5l
3. VE is 6l/m

15

Name average values for f, TV and VE for an untrained athlete during maximal intensity exercise

1. F is 50 breaths per minute
2. TV is 2.5l
3. VE is 125l/m

16

Name average values for f, TV and VE for a trained athlete at rest

1. F is 10 breaths per minute
2. TV is 0.5l
£. VE is 5l/m

17

Name average values for f, TV and VE for a trained athlete during maximal intensity exercise

1. F is 60 breaths per minute
2. TV is 3l
3. VE is 180l/m

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