Free Benefits of Constant Participation in Exercise Essay Sample
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Regular participation in physical activities and exercise has been proved to be one of the most cost-effective interventions for preventing certain chronic diseases. For instance, several researches that have been conducted show that people who exercise regularly are less likely to suffer from heart diseases. Therefore, physical exercise should be widely promoted in all communities all over the world. Everyone should take advantage of the important benefits of exercise in keeping his or her body fit.
One of the most important benefits of exercise is to ensure a properly functioning cardio respiratory system. Cardio respiratory refers to the transportation of oxygen from the lungs to the muscles. As we exercise, we don’t only burn calories, but also we enhance our cardio respiratory fitness. This process involves some several steps. When we breathe, oxygen gets into our lungs and is absorbed into the blood system. The oxygenated blood is then pumped to the left side of the heart via the pulmonary vein. On getting into the heart, the oxygenated blood is pumped to various organs where the oxygen is absorbed and used to generate energy. As blood supplies muscles with oxygen, it also removes carbon dioxide which is a waste product of aerobic respiration. The de-oxygenated blood is then pumped to the lungs for oxygenation; the process repeats itself in a cyclic manner. During vigorous activities like exercising, muscles require more oxygen to satisfy the high levels of energy required. Exercising makes the heart get used to enduring high oxygen demands and hence, the cardio respiratory rate is enhanced greatly.
In order to supply the muscles with adequate oxygen, an increase in the cardiac output is required. The cardiac output is determined by two factors, that is, the heart rate and amount of blood that is ejected by each contraction of the heart. This amount is called stroke volume. An increase in stroke volume results in an increase in blood volume ejected by each contraction of the heart. Usually, the ventricles expel about half of the blood they contain; a decline in stroke volume is one of the early signs of heart failure. While both ventricles pump equal volume of blood in each stroke, cardiologists only measure the stroke volume of the left ventricle, since it is the one that supplies blood to all body organs except the lungs. Constant participation in exercise strengthens heart muscles and therefore ensures smooth circulation of blood to all the organs.
In conclusion, exercising regularly can protect an individual from stroke, heart diseases and high blood pressure. It can also help in management of stress and in improvement of mood. A. and R. recommend that an individual should do twenty to thirty minutes of aerobic activity three times a week. Also, stretching and other muscle strengthening activities are equally important and should be done at least twice a week.