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6. Cardiac output increases from ... to ...
- 2 to 20l/min
- 10 to 20l/min
- 5 to 25l/min
- 5 to 15l/min
7. What is not a reason that O2 uptake in lungs and delivery to muscles might be limited?
- The long distance from lungs to muscles
- Maximal attainable CO
- Resistance to diffusion between RBC and mitochondria
8. The increase in arteriovenous difference is a result of?
- Decreased venous oxygen content
- Increased arterial oxygen content
9. During exercise, oxygen demands increase by
10. Cardiac output can be increased by how much with an elite level resting heart rate?
11. Training increases myoglobin by?
12. Plasma volume does what with endurance training?
13. Heart rate rises how with work rate?
14. What is cardiac output's relationship with work rate?
- Negative exponential
- Positive exponential
- Positive linear
- Negative linear
15. Cardiac stroke volume increases during exercise by
16. Almost all increase in stroke volume occurs at a ...
- low work rate
- high work rate
- medium work rate
17. How does haemocrit change with endurance training?
- Increases a lot
- Decreases a lot
- Decreases slightly
- Increases slightly
18. What is a normal range to find max heart rate in?
19. What is not a reason that stroke volume increases with increased work rate?
- Reduced filling time
- Increase in filling pressure
- Increase in ventricular contractility
20. A 5 x increase in cardiac output can increase muscle blood flow by how much?