Question

Why is the increase in heart rate important during exercise?

1 year ago

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Telly Ankunding


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Tara S Best Answer!

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During exercise, muscles are contracting more frequently and powerfully and this leads to higher oxygen demands as cells need to respire more in order to create the energy to power the contractions. In order to ensure oxygen is supplied in sufficient amounts, the heart rate must increase to speed up oxygen delivery around the body.

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