During the exercise the heart rate and the stroke volume are increased, so heart could pump more blood faster to supply muscles with the oxygen from the blood. Over time, if the exercise is done consistently, heart muscles get stronger and walls of arteries get thicker and more used to the higher pressure, which reduces the risk of heart diseases.
During the exercise the heart rate and the stroke volume are increased, so heart could pump more blood faster to supply muscles with the oxygen from the blood. Over time, if the exercise is done consistently, heart muscles get stronger and walls of arteries get thicker and more used to the higher pressure, which reduces the risk of heart diseases.