Why does exercise lower your blood pressure? thanks.?

Answer:
Stronger, well conditioned muscles are more efficient than weaker, poorly conditioned ones, including the heart. They require less oxygen to do the same amount of work.When you use your muscles the need for oxygen increases. This starts the heart to pumping harder and faster. But only a certain amount of blood can travel through the circulatory system at a given time. As this maximum amount is approached a "back pressure" begins due to the resistance in the veins and arteries. Blockages from plaque (cholesterol) can increase the resistance. Thus, an increase of blood pressure is experienced.A stronger, well conditioned heart also pumps blood more efficiently.Exercise improves the muscles efficiency and helps reduce plaque buildup by washing it away slowly over time with the improved blood flow. For more information see the links in the "sources" box below.Sincerely,
TerryI have a question:Did anyone else realize that TICH4592 first said there is no such thing as blood pressure, but then he went on to explain what it is?I am no hydraulic expert but when a fluid is moved through a closed loop, "pressure" is created. When we pump water through a closed pipe system, water pressure is created. When our heart pumps blood through our closed circulatory system, "blood pressure" is created.There's no such thing as "Blood Pressure"? Com'n TICH4592, get real! And you call your self a "Cardiovascular Physicist". Shame, shame, shame and sham, sham, sham!

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increases circulation, so that when you are not exercising the heart does not need to pump so hard to get the blood thru your body, it also helps lower weight, less weight, easier for blood to pump around

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There is no such thing as "blood pressure", although there are four 'pressures' associated with blood flow round the cardiovascular system.
Here's how it works.
When you exercise, more physical stress requires more blood flow around the vascular system. The greater the stress, the greater cardiac output is required, so (besides dilating the blood vessels to facilitate flow), the brain both increases mean arterial pressure and pulse rate, giving greater output volume at each heart-beat, and more heart-beats per minute. Since pulse-pressure (the difference between systolic and diastolic pressures) is directly proportional to stroke volume, the greater stroke volume increases pulse pressure accordingly.
Since the systolic pressure is mean pressure (and remember, the brain has increased this) PLUS two-thirds of pulse pressure, {Ps = Pm + 2Pp/3} systolic pressure also increases.
So increased exercise means increased systolic pressure, as well as increased mean pressure, all because blood flow has to increase.
Diastolic pressure also increases at the aortic valve, but often this does not show at the brachial artery, (although because of arteriosclerosis) it usually does in the elderly, because a sclerotic arterial system more accurately reflects the pressures generated within the left ventricle.
Sorry if the truth hurts.
How nice to have an intelligent conversation.
There are four pressures, Ps, Pd, Pm, and Pp, each of which behaves differently. The level of each is detemined by a different equation for any cardiac power output, so they do not rise, nor fall 'together' and so can't simply be lumped together and called "the blood pressure".
Firstly, I didn't "explain" what "IT" is; I explained what each did; - quite a diff'rent concept.
I have a question for you. One, the first of 3 readings of what you call "the blood pressure" measured by auscultation at the brachial artery is 160/80. The second is 170/70 - Has "IT" risen? -or has "IT" fallen? And the third one is 150/90..what's happened now? Has "IT" (what you call the "blood pressure) risen? fallen? or what? I'm able to describe to you in detail exactly what's happened.
(Incidentally, they're actual clinical readings taken from a set of records of a 24 hr monitor of a patient). They are crystal clear to me. What do you have, as an explanation?
I repeat: THERE IS NO SUCH PARAMETER AS "THE BLOOD PRESSURE". It exists only in the collective mind of the Medical Industry.
Incidentally, I would observe simply that it is quite obvious that you are no hydraulics expert. It is the pressure gradient caused by pumping that makes the fluid traverse the conduit, not the other way round, as you postulate.
Oh, and incidentally too, there is absolutely not a shred of scientific evidence, in any research texts, that the total peripheral arterial impedance (not 'resistance' -look it up) increases with flow. Quite the opposite. Impedance decreases with increasing flow, because of vasodilatation induced by the brain via the central nervous system.

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