Cardio-vascular System During Exercise And During Recovery Flashcards Preview

A-Level PE Anatomy And Physiology > Cardio-vascular System During Exercise And During Recovery > Flashcards

Flashcards in Cardio-vascular System During Exercise And During Recovery Deck (13)
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1

Describe the 5 steps of a aerobic heart rate graph

1. Rise in bpm before exercise called anticipatory rise
2. Fast inc at start of exercise to deal with increased 02 demand
3. Bpm plateaus as supply and demand meet
4. Fast decrease in bpm post exercise due to drop in VR
5. Slower decrease in bpm until bpm reaches pre-exercise value

2

Describe the 5 stages of an anaerobic bpm graph

1. Anticipatory rise
2. Fast increase to cope with 02 demand
3. Slower increase as supply never meets demand
4. Quick decrease in bpm due to decrease in VR
5. Bpm takes longer to get to pre-exercise value due to high intensity

3

What is it called when stroke volume decreases due to an excessive increase in bpm

Cardiovascular drift

4

When is SV maximised

During sub-maximal intensity exercise

5

Describe the graph for SV for exercise intensity

1. SV increases linearly with exercise intensity
2. Heart rate plateaus as intensity continues to rise
3. At maximal-intensity exercise the SV decreases

6

Describe the graph for Q during exercise intensity

Q increases linearly with exercise intensity
2. Q plateaus as exercise continues to rise to maximal intensity

7

Why does Q stay the same at maximal intensity but SV decreases

Chambers can’t fill fully with the speed of bpm so less is ejected per beat but the increase in bpm ejects the same amount each minute

8

What is the average value of bpm, SV and Q for an untrained athlete at rest

Bpm = 70bpm
SV = 70ml
Q = 5l/m

9

What are the average values for bpm, SV and Q for an untrained athlete during sub-maximal intensity exercise

Bpm = 100bpm
SV = 100ml
Q = 10l/m

10

What are the average values for bpm, SV and Q for untrained athletes during maximal intensity exercise

Bpm = 220 - age bpm
SV = 100ml then will decrease slowly
Q = 10l/m

11

What are the average values for bpm, SV and Q for a trained athlete at rest

Bpm = 50bpm
SV = 100ml
Q = 5l/m

12

What are the average values for bpm, SV and Q for a trained athlete during sub-maximal exercise

Bpm = 120bpm
SV = 200ml
Q = 24l/m

13

What are the average values for bpm, SV and Q for a trained athlete during maximal intensity

Bpm = 220 - age bpm
SV = 200ml then will slowly decrease
Q = 24ml/m

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