After
Your heart has to pump more blood through your veins because of the energy you are using to exercise so your heart has to pump faster and harder
To pump blood quickly for the body because the will be needing enough oxygen during the exercise
your heart beats faster in order to pump oxygenated bloodcells to all of your organs.
During vigorous exercise the heart is moving more oxygenated blood into the muscles, so it has to pump faster.
It makes the heart pump slightly faster
Certainly! Swimming is an aerobic exercise and strengthens the heart.
increases the heart rate
because when you exercise your muscles require more oxygen so your heart will beat faster to get the oxygen to the mucsles. since your blood goes through the lungs and your heart is beating faster you must breathe faster to get a sufficient amount of oxygen.
If heart rate drops below 60, it is called bradycardia. And, during exercise, the body consumes a lot of energy, to fulfil this requirement of the body, the heart has to pump faster. In bradycardia, heart beats slowly and it is dangerouse as it might not be able to pump blood for the requirement of tissues especially brain, therefore it is very dangerous to have bradycardia after exercise.
Because when your muscles are working they need more oxygen and nutrients, which they get from the blood. And for the blood to be able to carry more nutrients to the muscles the heart has to pump faster.
when you exercise, your heart rate increases. the more explosive and intense the exercise, the higher the rate will go. As with any muscle in the body, exercise makes it stronger. a stronger heart allows for more blood and oxygen to circulate with each pump resulting in your heart rate lowering not only during exercise but in daily life. a lower heart rate means your heart does not have to work as hard and thats a good thing !!!
Absolutely. When you get your heart racing during (typically aerobic) exercise, you increase its ability to pump blood.