Main categories:
1, practical swimming
A swimming style with great practical value in military affairs, production, survival skills and life service is called practical swimming. Such as crawl swimming (freestyle), breaststroke, side swimming, diving, treading water (standing swimming), water rescue, military swimming, backstroke, dog planing and so on. But there are also all kinds of synchronized swimming that challenge people's vital capacity.
2. Competitive swimming
Competitive swimming refers to swimming events that have specific technical requirements and compete in accordance with swimming competition rules. Since the first Olympic Games (1896), swimming has been included in the official Olympic events.
It can be divided into two categories: competitions in swimming pools and competitions in open waters. Such as freestyle, breaststroke, backstroke, butterfly (also known as dolphin swimming) and individual medley composed of these four kinds of swimming, as well as relay swimming competition swimming. Competitive swimming mainly determines the ranking of swimming according to the speed, which is called competitive swimming according to the national swimming competition rules.
Competitive swimming originated in Britain and Australia, and was later introduced to other countries. From the middle of19th century to the beginning of 20th century, swimming competitions began to be popular all over the world, and swimming clubs were established one after another. The British Amateur Swimming Association (formerly known as the Metropolitan Swimming Association) was established in 1869, which is the earliest national swimming association.
From 1850 to 1860, there are international swimming competitions between Britain and Australia. 1894 When the International Olympic Games was founded in Paris on June 6th, swimming was listed as one of the Olympic events in 1894. As for FINA, it was established in 1908.
3. Tour performance
Synchronized swimming is also called artistic swimming. It is a competitive sports event that integrates dance, gymnastics, swimming and other items, and it has high requirements for the figure, swimsuit, headdress, music and movements.
It is divided into single, double and team events. Through the movement and music of athletes' limbs on the water, it shows all kinds of beautiful movements and various forms of artistry, giving the masses a good enjoyment, so it is known as "water ballet".
Extended data:
Precautions:
1, after swimming, you can recover your physical strength by supplementing sports drinks, relaxing training, debugging breathing, hypnotic suggestion, psychological adjustment, massage recovery, swimming in the water and other means.
2. Potential hazards include leg cramps, dizziness, headache, nausea, vomiting, chest tightness, earache, tinnitus, abdominal pain, abdominal distension and itchy eyes.
3. Common diseases include conjunctivitis, otitis media, sinusitis, pharyngolaryngitis, contact dermatitis, allergic dermatitis and aspiration pneumonia.
4. Avoid swimming in the sun for a long time.
Prolonged exposure can lead to sunburn or acute dermatitis, also known as sunburn. In order to prevent sunburn, it is best to use an umbrella to shade the sun after landing, or rest in a cool place, or use a bath towel to protect the skin, or apply sunscreen to exposed parts of the body.
5. Avoid swimming without warm-up activities.
The water temperature is usually lower than the body temperature. Therefore, warm-up activities must be done before entering the water, otherwise it will easily lead to physical discomfort.
6. Avoid eating immediately after swimming.
It is advisable to rest for a while before eating after swimming, otherwise it will suddenly increase the burden on the gastrointestinal tract, which will easily lead to gastrointestinal diseases after a long time.