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Author Question: How is maximal heart rate determined? What will be an ideal ... (Read 46 times)

tiara099

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on: Aug 20, 2018
How is maximal heart rate determined?
 
  What will be an ideal response?

Question 2

What two factors determine cardiac output, and how are they changed during exercise?
 
  What will be an ideal response?


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wuly

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Reply #1 on: Aug 20, 2018
Answer to Question 1

Maximal heart rate is reached at the same time as VO2max is reached. Often, it is necessary to estimate maximal
heart rate when measuring it would be inconvenient or impossible. A good estimate of maximal heart rate can be
achieved by subtracting your age from 220. This estimate has been shown to be within +10 beats of that achieved
during exercise.

Answer to Question 2

Heart rate and stroke volume determine cardiac output. Both increase as exercise intensity increases. Stroke volume
plateaus at about 40 of VO2max but heart rate increases in a linear fashion all the way to VO2max (maximal
exercise)


tiara099

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Reply #2 on: Aug 20, 2018
Both answers were spot on, thank you once again


wuly

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Reply #3 on: Aug 20, 2018
Great! Please up vote :D


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