How Does Exercise Affect The Pulse Rate

Pulse rate
During the practical while at rest the pulse is at a normal speed as the person is not doing any activity which requires lots of energy. This changes when the person starts to exercise as the line on the graph increases, this shows that the pulse rate is increasing because the heart is beating faster to make sure enough oxygen reaches the cells, this also causes the breathing to increase as the body has to take in more oxygen to supply the body and remove the carbon dioxide.
In the body the arteries expand as the heart pumps the blood around the body; this is what makes the pulse. As a person exercises the heart pumps the blood around the body faster causing the pulse rate to increase and breathing rate to increase. Yet for a fit person such as an athlete, when they exercise their pulse rate does not increase as much as an unfit person pulse rate does, this is because an athlete exercise’ on a regular bases which allows them to exercise without using too much energy.
Yet when the person is at rest again the line on the
As the blood fills the atria the pressure builds, at this point the pressure in the atria is greater than the pressure in the ventricles so the bicuspid and tricuspid valves are pushed open this is known as systole, this is when the atria contracts, the blood flows into the ventricle and the valves close and the atria relaxes this is known as diastole. The pressure in the ventricle increases until it is greater than the pressure in the aorta and the pulmonary artery, the semi-lunar valves are then forced open, this is known as ventricular systole and the blood flows out the aorta and the pulmonary artery and out the heart to around the body and the lungs, once this is done the semi-lunar valves close and the ventricles relax, this is known as the ventricular diastole. This is repeated causing the heart to pump blood around the body; this is known as the cardiac