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030 - Heartbeats

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Question:

1. What is the normal resting heart rate of an adult?
A 40-60 bpm
B 60-80 bpm
C 80-110 bpm
D 110-120 bpm

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Correct Answer: B
Your Answer:
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Question:

2. Athletes and fit people have a ______ resting heart rate.
A lower
B higher

Feedback:

People who do exercise have a more efficient cardiovascular system that pumps more oxygen per heartbeat. As a result the heart needs to beat less to do the same job. Therefore the heart rate is lowered. Tour de France cyclist Lance Armstrong has a resting HR around 32 bpm.
Correct Answer: A
Your Answer:
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Question:

3. What are the VO2 max values in ml/kg/min for an average young untrained male and female respectively?
A 38 and 45
B 45 and 38

Feedback:

VO2 max is the maximum volume of oxygen that a person can intake and is calculated from the maximum heart rate, the highest heart rate one can achieve. VO2 max is widely accepted as the single best measure of cardiovascular fitness and maximal aerobic power. VO2 max can be determined by taking a treadmill test.
Correct Answer: B
Your Answer:
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Question:

4. What is the simple formula to calculate MHR, the maximum heart rate one can achieve?
A MHR = 100 - age
B MHR = 150 - age
C MHR = 180 - age
D MHR = 220 - age

Feedback:

MHR decreases with age due to degeneration of heart muscle cells reducing the strength of the heart and its ability to pump blood.
Correct Answer: D
Your Answer:
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Question:

5. Which side of the body is the heart located?
A center
B left
C right

Feedback:

The heart is located under the ribcage in the center of the chest between the right and left lungs. The heart is usually felt to be on the left side because the left heart is stronger and pumps to all body parts.
Correct Answer: A
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