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Re: RC: Heart contractility

In the heart's response to training, wouldn't the strength of each myocardial 
fiber remain the same?   Would there be an additive effect due to increased 
muscle thickness?  A larger chamber would result in an increased stroke 
volume while the smaller cavity due to hypertrophy of chamber walls would  
result in a smaller stroke volume but a higher pressure at the end of systole?

Carol Wingate
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