1Thu BuiENGL151Professor Tim MeadowsSWIMMING: The Healthiest SportIn modern times, people pay more attention on their health and start investing in it bypracticing sports. Many people choose swimming as their favorite sports between hundreds ofchoices making it one of the most popular sports in the world. Swimming is an aquatic andaerobic exercise that can bring numerous benefits to people. I would say swimming is the bestsport because it not only helps us develop physical fitness but also has a good impact on ourmind. First, we have to define aerobic exercise. This is the moderately intense physical activitywhich we can endure for a long period of time so it will enhance our cardiorespiratory fitness.For example, we can only lift the weight for a few minutes but we can walk, a kind of aerobicexercise, for more than 30 minutes. “Aerobic” means “in the presence of oxygen” so while doingthis exercise, we have to breathe evenly to take in a great amount of oxygen. When we practiceaerobic exercises, we can feel our heart thumping, and we breathe faster than normal but still cansustain this for long time. (Weil, 2020, para.1)Due to the fact that swimming is an aerobic exercise, it has positive effects on ourrespiratory system. While practicing running or riding a bike, we tend to breathe shallowly andexhale forcefully. Unlike these practices, swimming makes us breathe slow and deep, because itis vital to adjust our breath with the right technique while we are under water. This breathingtechnique keeps the lung alveoli – the numerous little balloon-like structures that expand when
2we inhale and empty as we exhale – from collapsing and sticking together (Heid, 2017, para.5).Breathing technique in swimming also helps our respiratory muscles become stronger. Moreover,when we swim, we turn our body position horizontal, as opposed to our natural upright posture.This position, combined with the breathing technique, will help to move respiratory secretions.Swimming regularly also brings benefits for the circulatory system. As we breathe slowlyand deeply in rhythm while we swim, it will balance the blood pressure and normalize the pulserate. In a research done by Professor Hirofumi Tanaka in University of Texas, patients withosteoarthritis who suffered from an increased risk of cardiovascular disease had lowered arterialstiffness, and blood pressure after 12 weeks of swim training. Hence, swimming will reducehypertension and heart-related diseases.The digestive system is another body system which is affected by swimming. Swimmingincreases the metabolic rate, meaning we will digest faster when we do swimming exercises.