Explain why heart rate increases with an increase in work?

the amount of CO2 produced in the body increases through the use of muscles this starts the heart pumping it up yo

Explain why heart rate increases with an increase in work?

because your muscles are using more oxygen, so you breathe more and your heart must work harder to pump the blood to get the oxygen to your muscles.

Explain why heart rate increases with an increase in work?

It%26#039;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%26#039;s why it doesn%26#039;t need pump as hard as it would for someone who isn%26#039;t in good shape.

EDIT

It%26#039;s also to carry away the increased waste used by the body.

Explain why heart rate increases with an increase in work?

becuase you burn out you oxygen faster through muscles and you heart starts to pump more blood to you body. Thats why you breath heavy cuz you need to give oxygen to your body and the blood carries it.

Explain why heart rate increases with an increase in work?

The same reason your car uses more gas going up a hill.

Your heart pumps oxygenated blood to all the organs and muscles. The harder they work, the more oxygen they require.

Explain why heart rate increases with an increase in work?

You have to breath air and out to make your lungs work if u dont u will die