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Questions and Answers
What contributes to the increase in cardiac output during exercise in the upright position?
What contributes to the increase in cardiac output during exercise in the upright position?
- No change in either stroke volume or heart rate
- Decrease in both stroke volume and heart rate
- Increase in stroke volume (correct)
- Decrease in heart rate
At what workload does stroke volume not appreciably increase in untrained or moderately trained individuals?
At what workload does stroke volume not appreciably increase in untrained or moderately trained individuals?
- 10% - 20% VO2max
- 70% - 80% VO2max
- 40% - 60% VO2max (correct)
- 30% - 40% VO2max
How is the rise in cardiac output achieved at work rates greater than 40% - 60% VO2max in untrained or moderately trained individuals?
How is the rise in cardiac output achieved at work rates greater than 40% - 60% VO2max in untrained or moderately trained individuals?
- Increases in heart rate alone (correct)
- No change in cardiac output
- Decreases in heart rate alone
- Increase in stroke volume alone
For whom are the examples of maximal heart rate, stroke volume, and cardiac output provided?
For whom are the examples of maximal heart rate, stroke volume, and cardiac output provided?
During maximal exercise, how is the distribution of cardiac output altered compared to rest?
During maximal exercise, how is the distribution of cardiac output altered compared to rest?
At what point does stroke volume significantly increase during exercise?
At what point does stroke volume significantly increase during exercise?
How does cardiac output rise during exercise beyond a certain intensity in untrained individuals?
How does cardiac output rise during exercise beyond a certain intensity in untrained individuals?
'Redistribution of blood flow during exercise' refers to:
'Redistribution of blood flow during exercise' refers to:
'Redistribution of blood flow during maximal exercise' implies that:
'Redistribution of blood flow during maximal exercise' implies that:
'Distribution of cardiac output during rest' indicates that:
'Distribution of cardiac output during rest' indicates that:
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