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18 February, 01:06

If aerobic exercise improves heart strength so that it pumps more blood with each beat, what likely happens to the heart rate as the cardiac muscle gets stronger?

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  1. 18 February, 01:50
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    Hi there!

    Each heartbeat pumps a certain amount of blood to the body. As the cardiac muscle gets stronger, the amount of blood pumped with each beat increases which in turn makes the heart more efficient overall. As a result, we can infer that as the cardiac muscle gets stronger, the heart rate will decrease since it is able to pump more blood with each beat.
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