How can I estimate stroke volume?

  • Thread starter Thread starter legendarytale890
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legendarytale890

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I'm doing a poster project for Honors Anatomy class, and I'll get 10 points extra credit (which I need) if I can figure out how to estimate my stroke volume after an activity that increases my heart rate. I know that the average stroke volume at while I am at rest is 80 mL. So how can I estimate it after my heart rate has been increased?
 
You can try and manipulate this equation:

CO = HR x SV

CO= cardiac output
HR= heart rate
SV= stroke volume
- an increase in HR=increase in CO
- an increase in SV=increase in CO
So if you know or can determine one of the other perimeters, you should be able to calculate the SV.

Also, SV will increase if any of the following occur:
there is an increase in systemic vascular resistance
preload increases
afterload decreases
contractility increases
 
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