Cardiovascular physiology refers to the different functions of the heart and circulatory system and the study of the factors that affect them. The human heart is responsible for circulating nutrient-rich blood to all of the body's organs and tissues, thereby sustaining life. Ejection fraction refers to the relative amount of blood that is pumped out of the right and left ventricles with each contraction of the heart. There are several ways to increase ejection fraction, with regular exercise and a heart-healthy diet being the safest and most effective.
Like any machine, there are times when the heart works efficiently and healthily. Other times, different factors can cause the heart to malfunction. Genetics, diet, exercise, and weight all contribute to how well this biological machine works, and while there are certain aspects of heart health outside of a person's control, there are also many things a person can do to improve functionality , how to take measurements. to increase the ejection fraction.
The ejection fraction is characterized by the formula E = SV / EDV, where "E" represents the ejection fraction, "SV" represents the stroke volume, and "EDV" is the end-diastolic volume. Stroke volume is the volume of blood ejected from the heart, while end-diastolic volume is the amount of blood remaining in the ventricular chambers after the heart has contracted. Stroke volume is the numerator and end diastolic volume is the denominator, so to increase the ejection fraction, one must either increase the stroke volume or decrease the end diastolic volume.
Due to the inverse relationship between SV and EDV, an increase in one leads to a decrease in the other; therefore, to increase the ejection fraction, the focus should be on improving the amount of blood that leaves the ventricles. The best way to do this is to increase the size of the ventricles and the contractility, or the force with which they contract. The heart is a muscle, so it responds to exercise by getting stronger over time. Generally speaking, physical stress causes muscle fibers to rebuild, which in turn makes the stressed muscle more powerful.
When the heart is stressed, for example through repetitive cardiovascular exercise, it becomes stronger and can pump more blood from each chamber. Also, the chambers get larger as more fibers are created. All of these factors contribute to helping increase ejection fraction through the improved stroke volume that is experienced as a result of exercise.
There are also other ways to improve the ejection fraction. When heart damage occurs, through a heart attack or other dysfunction, extreme measures may be necessary. Heart transplants are sometimes performed under extreme circumstances to give a person a new heart that has higher function and ejection fraction than the old one. There is conflicting evidence regarding certain drug therapies and increases in ejection fraction; however, ongoing research is being done to address these discrepancies.