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Why does heart rate increase with an increase in work?

Explain why heart rate increases with an increase in work?
Asked On : Fri, 18 Dec 2009
Answers:  3 Views:  425
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Cardiologist 's  Response
Hi well come to HCM.
with exercise demand of blood by body increses nad to full feel this demand heart has
to pump faster leading to increase in heart rate. thanks
Answered: Thu, 15 Sep 2011
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General & Family Physician Dr. Ramesh M.Vachharajani's  Response
Thanks for query,
When you are at rest body gets oxygen and nutrients with your normal heatr rate.
When you do hard work or exercise then need of oxygen and other nutrients become more so to cop up your body demand your heart has to work more so your pulse rate become fast.
Ok and bye.
Answered: Thu, 15 Sep 2011
I find this answer helpful
  User's Response
It's a physical response to get extra blood (carrying oxygen and nutrients) to the muscles in the body that are working harder. When you are in better shape, the heart is able to work more efficiently and that's why it doesn't need pump as hard as it would for someone who isn't in good shape. EDIT It's also to carry away the increased waste used by the body.
Answered: Fri, 18 Dec 2009
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