2006-10-23 11:54:34 · 12 answers · asked by Ashley 2 in Education & Reference ➔ Homework Help
Our heart is a muscle that pumps blood. The more we use a muscle, the stronger it becomes. When we exercise and increase our heart rate, we are using our heart muscles more. Athletes have stronger heart muscles; the heart can pump more blood with every beat so they don’t have to beat as fast to pump out the same amount of blood.
2006-10-23 11:58:35 · answer #1 · answered by Shesrotuman 1 · 0⤊ 0⤋
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2016-05-17 12:30:43 · answer #2 · answered by ? 3 · 0⤊ 0⤋
Heart rate increases during excosize so that the blood can get to all of the body faster since you are buring up the oxygen that the muscles need.
2006-10-23 11:57:35 · answer #3 · answered by TJ 2 · 1⤊ 0⤋
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RE :Why does heart rate increase when you exercise?
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2017-03-26 22:29:05 · answer #4 · answered by ? 6 · 0⤊ 0⤋
Muscles require more oxygen when in use and the heart delivers oxygen rich blood to them and the lungs re oxygenate blood. That's why you breathe hard too.
2006-10-23 11:59:20 · answer #5 · answered by Anonymous · 1⤊ 0⤋
your breathing in more causeing a more rapid exchange of oxygen which enters your lungs goes through the cardiac system to your heart and with more blood to pump it must pump faster
2006-10-23 12:03:07 · answer #6 · answered by SAM S 2 · 1⤊ 0⤋
if youre breathing hard, maybe, your heart has to work hard and your heart rate increases
2006-10-23 11:58:26 · answer #7 · answered by Greatest Grace 2 · 0⤊ 0⤋
because when u exersize u use energy and it rases ur heart rate to ur max heart rate witch suld be around 20 im pretty posotive like 99.7% when u get a real answer tell me
2006-10-23 12:05:32 · answer #8 · answered by lizzyrox06 1 · 0⤊ 0⤋
Bcuz your heart pumps more blood through your body, therefore the heart has to work harder.
2006-10-23 11:56:36 · answer #9 · answered by Gyan Asamoah 1 · 0⤊ 0⤋
yes becos during exercise more blood needs to be circulated
2016-03-28 05:27:43 · answer #10 · answered by ? 4 · 0⤊ 0⤋