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6 beneficios para la salud de nadar

Alrededor de 14 millones de personas en Inglaterra van a nadar cada año. La natación en interiores sigue siendo una actividad popular, mientras que la natación en aguas abiertas está en constante aumento. Muchos niños suelen asistir a clases de natación con sus escuelas, y eso sin contar a los británicos que nadan en el extranjero durante sus vacaciones. Aunque nadar puede ser divertido, ¿sabías que en realidad también mejora tu salud al mismo tiempo?

What are the benefits of swimming?

Dr Deborah Lee of Dr Fox Online Pharmacy explains that swimming is a fantastic form of aerobic exercise, engaging various areas of the body.

Ella dice: "Aerobic exercise involves using large muscle groups. It stresses the heart and lungs (cardiorespiratory system) to provide sufficient oxygen to exercising muscles. Taking part in regular aerobic exercise has been shown to be protective against the development of enfermedades del corazón, diabetes, y cáncer."

A gentle form of exercise that works various body parts

Running miles on a treadmill isn't everyone's preferred form of exercise, so swimming might be for you if you prefer something that is slower-paced and gentler, but still beneficial. For this reason, swimming is a great exercise for when we get older and adopt a more sedentary lifestyle.

Helps to build muscle

Lee says: "Swimming involves pushing against water resistance which, in turn, aids with muscular strength at the same time as exercising the heart and lungs. By doing this, you will be increasing your 'maximal oxygen uptake' - the efficiency of your body in getting oxygen to exercising muscles."

Another benefit of swimming is that it can also improve your physical fitness by increasing your endurance and stamina levels, helping you to maintain a healthy weight, toning your muscles, and increasing strength. Since it works your entire body - from your fingertips down to your toes - swimming is a great all-over exercise.

Aids with weight loss

Regular swimming can decrease your body fat levels. Lee explains that swimming uses up more calories than many land-based exercises, such as running.

According to Lee, the exact amount of calories you will burn depends on your weight but, for example, someone weighing 155 pounds - around 11 stone - will roughly use up between 493 and 704 calories per hour while swimming. If you tend to sweat heavily when exercising, swimming is good as it helps keep you cool.

She adds: "Regular swimming has been shown to reduce abdominal (visceral) fat which is dangerous, metabolically active fat. Visceral fat secretes hormones that cause long-term inflammation, a biochemical process that underpins the development of many of the chronic diseases we see today. Reducing the amount of visceral fat is key for good health."

Swimming can also result in favourable changes to your blood lipids (colesterol).

Additionally, swimming is a good exercise if you've gone a long time without working out and want to ease yourself back into exercise. Swimming can ease your chance of cardiovascular disease, hipertensión, type-2 diabetes, y demencia too.

Boosts mental health

Swimming regularly can greatly mejora tu salud mental. The exercise helps to combat stress and reduce levels of ansiedad y depresión by raising levels of endorphins - the brain's natural painkillers. This is why you'll often feel calmer and more relaxed post-swim.

In one study conducted by YouGov, 492,000 adults with mental health conditions said they had reduced their number of visits to a medical professional for their mental health as a result of swimming once every 2-3 weeks. Commissioned by Swim England, the poll also found that 490,000 people reduced, or no longer take, medicine for mental health because of swimming.1

In fact, just immersing yourself in the water can increase blood flow to the brain, not only boosting your mood but also improving memory, concentration, and general cognitive function. Not to mention that swimming can be a social activity that you can do with friends, reducing loneliness and increasing general motivation in life.

Research also suggests that swimming can reverse brain damage from stress by creating new neurons - a process called hippocampal neurogenesis.

Mejora el sueño

It has long been hypothesised that physical activity such as swimming can aid with sleep and improve disorders such as insomnia. And it certainly seems to be a nice way to wind down at the end of the day, given that it doesn't need to be a strenuous activity, you can move at your own pace and it's done in a calm environment.

Lee says: "Swimming is a great option for improving your sleep. Moderate-intensity exercise has been shown to improve the quality and duration of sleep."

Plus, some people just enjoy the sounds of the water. If you're swimming in a private pool or when your local swimming baths are quiet in the evening, the splashing of the water can be soothing and help you decompress.

Relieves pressure on joints

Going swimming isn't going to strain your joints in the same way that weightlifting would.

Lee explains: "When you swim, the water supports the body weight, which relieves pressure on joints. Those with osteoarthritis, or other inflammatory conditions affecting the joints, will find swimming is especially beneficial."

For this reason, swimming is a healthy exercise through middle-to-older age, as it's safe but also offers a wide range of benefits that you might not get from something more physically taxing.

For example, one study of adult women compared the effects of swimming versus walking. The findings indicated that, in the short term, swimming reduced body weight. In the long term, swimming improved body weight and improved body fat distribution in comparison with walking.2

Who might benefit most from swimming?

Lee says that swimming is a good way of strengthening your core muscles - chest, back, abdominal and pelvic muscles. It can help tone the suelo pélvico. Therefore, swimming can help people with back pain, disc issues, and arthritis, and be a good form of physiotherapy after surgery, including joint replacements. A strong core helps with balance and stamina, can help keep someone mobile, and can help prevent falls.

She adds: "Ageing is also linked to loss of muscle, but swimming can help to build this back up. Many people even in middle age have sarcopenia - a relative loss of muscle strength."

Swimming has also been found to be beneficial for those with neurodegenerative conditions, such as multiple sclerosis, or after a spinal injury. It's also recommended for those who are pregnant, people with mental health conditions, and those with Alzheimer's disease.

Lee explains that the benefit of swimming is for just about everyone of all ages and abilities, provided it is done safely, and you seek advice before venturing into the pool if you have concerns, or have recently been diagnosed with a severe health condition.

Preguntas frecuentes

How does swimming improve mental well-being beyond just mood?

Beyond boosting mood, swimming can increase blood flow to the brain, which in turn improves memory, concentration, and overall cognitive function. Research also suggests it can help reverse brain damage caused by stress by creating new neurons, a process known as hippocampal neurogenesis.

Can swimming help if I'm new to exercise or haven't worked out in a long time?

Yes, swimming is a good exercise to ease back into physical activity if you've had a long break. It's a gentler form of exercise that still offers significant benefits without being as strenuous as some other forms.

What is 'maximal oxygen uptake' and how does swimming improve it?

'Maximal oxygen uptake' refers to your body's efficiency in getting oxygen to your exercising muscles. Swimming involves pushing against water resistance, which works your muscles, heart, and lungs, thereby increasing this efficiency. This process enhances your cardiorespiratory system.

Lecturas adicionales y referencias

  1. Swim England: Swimming benefits mental health
  2. Cox KL, Burke V, Beilin LJ, et al; A comparison of the effects of swimming and walking on body weight, fat distribution, lipids, glucose, and insulin in older women--the Sedentary Women Exercise Adherence Trial 2. Metabolism. 2010 Nov;59(11):1562-73. doi: 10.1016/j.metabol.2010.02.001. Epub 2010 Mar 2.

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Emily Jane Bashforth

Redactora de artículos

NCTJ

Emily es una redactora de artículos destacados en Patient, escribiendo sobre una variedad de temas relacionados con la salud y el bienestar.

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Dr Colin Tidy, MRCGP

Médico General, Autor Médico

MBBS, MRCGP, MRCP (Paediatrics), DCH

El Dr. Colin Tidy es un médico del NHS, con sede en Oxfordshire.

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