Why does your pulse rate not return to resting rate immediatelt after exercising?

Answer 1

Very basically: When a person is exercising or performing some sort of strenuous activity, the muscles being used need more oxygen. This means that we breathe harder when we are involved in whatever activity we are...involved in! Over a very short amount of time, muscles can build up an oxygen "debt" that needs to be repaid.

However, just because we finish the task and can allow our muscles to relax, it doesn't mean our muscles can let us relax. They need time to recover and pay off that debt, which means we will continue to breathe harder to resupply our muscles with oxygen.

Answer 2

The adrenalin and energy is still in the bloodstream. If it could back to normal immediatly, then all the excess energy would have to place to go, which defies the Second Law of Thermodynamics.

Answer 3

There are 2 types of respiration aerobic and anaerobic .When a person is in normal condition he is respiring aerobically .When he starts to run oxygen rate decreases and its body starts respiring anaerobically and due to the lack of oxygen his body starts producing lactic acid (which also creates fatigue in muscles when created in access.) and also the blood pressure and breathing rate increases to take in more oxygen and body heats up.When he takes rest enough oxygen is provided to dissolve the lactic acid and this reaction takes place slowly so that's why the pulse rate decreases slowly(also you have noticed that after running when you directly go under AC or fan you feel pain in muscles because your pulse rate decreases fast which does not allow to dissolve the lactic acid properly and this is why the rate comes down slowly to cope up with the body conditions.).

Answer 4

This happens because of a physiological mechanism known as oxygen debt. When we exert ourselves for short periods of time, we hardly notice this effect. But, as we exert ourselves over longer and longer durations, our body tissues "borrow" oxygen by converting to an anaerobic metabolic process to utilize the energy from glucose. Once we stop the exertion, our metabolism has to "catch up" by metabolizing the build up of lactic acid from the anaerobic process back into an aerobic process. In other words, we continue to breathe to make up for the time our bodies had to work without enough oxygen. Once we catch up, our breathing goes back to normal.

Answer 5

It will not return to resting state until the oxygen debt is paid in full.

Answer 6

because the heart rate needs to go down steady or you could have a heart attack