JiaX
Answered

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Explain why when you exercise your heart rate change?
(less than 20 words)
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Sagot :

mwabamwaba2004

Answer:

when you are exercising the muscles need extra oxygen,for this oxygen to be supplied quick the heart pumps faster which makes a quicker pulse.

I hope this helps

ireenys3004

Answer:

During exercise, your body may need three or four times your normal cardiac output, because your muscles need more oxygen when you exert yourself. During exercise, your heart typically beats faster so that more blood gets out to your body.Your heart can also increase its stroke volume by pumping more forcefully or increasing the amount of blood that fills the left ventricle before it pumps. Generally speaking, your heart beats both faster and stronger to increase cardiac output during exercise.

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