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Because your heart works harder to get blood around your body also the fitter you are the less your blood pressure will rise. You can tell if your blood pressure has risen if your pulse/heart beat is faster.

AnswerDepending on what exercise you do your body will react differently.

Aerobic exercise utilizes the large muscle groups to preform repetitive motions.

*walking, jogging, running, swimming, cycling, etc.

Isometric exercise involves a sustained contraction of individual or muscle groups.

*weight lifting

Of the two Aerobic exercise often puts a higher demand on the body as it is a constant and continual motion v/s isometric which usually has periods of rest between sets of activity.

Aerobic work depends on energy from the body to fuel the increase in oxygen demand. The muscles in use require oxygen to function and the increase in activity means an increase in the oxygen required which means that our bodies need additional energy to supply our muscles in order to continue to function properly. This is accomplished by our our increase in respiratory consumption (we breath faster and harder) to get more oxygen into our lungs, and into our blood. Also the increased respiration dumps the Co2 faster as we are now producing more than average during increased physical stress.

Our hearts also must pump more quickly to aid in this process. As our heart beats faster it also beat with a more forceful intensity to supplement our bodies new demand for energy and oxygen as well as byproduct removal.

Thus raising our blood pressure.

AnswerWhen exercising you blood needs to work harder to supply your muscles with more oxygen. Your heart does this by pumping more blood around the body with more powerful contractions which therefore raises your blood pressure. Your systolic blood pressure increases during exercise as the cardiovascular system delivers more blood to the working muscles and your diastolic blood pressure stays roughly the same or decrease slightly and this is all to do with the dilated blood vessels in the working muscles that let heat escape.
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11y ago
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15y ago

The systolic blood pressure does change. It is only the diastolic that doesn't. The diastolic blood pressure is the pressure when the left ventricle is in diastole. ie. at rest between two beats. In a healthy person, the heart should relax as usual, even when you exercise.

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Q: Why does blood pressure vary during exercise?
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