How about the 50m freestyle 13 years old and 30 seconds?

The duration of the 50-meter freestyle depends on many factors, including age, fitness, technique, and the environment in which the competition is played. Therefore, it is not possible to simply ask this question as more information is needed to assess the quality of this time.

However, there are some general criteria that can be referred to to help assess this timing. By general standards, a 13-year-old swim of about 30 seconds in the 50-meter freestyle is a good result. However, this does not mean that it is an excellent result, as there are many factors that can affect a person's swimming speed, such as physical condition, skill level, level of training, and competition environment, among others.

Therefore, if you are evaluating your swimming level, it is advisable to consider factors such as your physical condition, skill level, training level, and competition environment, and seek advice from a professional coach to help you better understand your level.

50m freestyle.

Within 30 seconds, he is basically a national second-level athlete.

level. After a period of sufficient professional training, it can basically be achieved. There are also 13-year-olds and 14-year-olds who swim for 30 seconds. When I was in the city youth team, I was only about 13 years old, and the 50-meter freestyle was about 30 seconds.

At that time, one of the national second-level athlete assessment standards seemed to be 30 seconds in the 50-meter freestyle.

The freestyle of 25 meters and 20 seconds is considered average.

According to different groups of people, there are 4 age groups of amateur swimmers, which are elementary school students, middle school students, adult men and adult women; There are 5 levels of amateur swimmers depending on the level.

Primary school students have four events: 50m freestyle, 50m breaststroke, 50m butterfly and 50m backstroke, with the latter two levels being unlimited strokes, 50m forward and 25m forward respectively.

The first three grades of the 50m freestyle are 1:30:50.00 and 2:10.00. The standard for the 50m breaststroke and the 50m backstroke is the same, at 1:40:00.00 and 2:20.00, respectively. The 50-meter backstroke is only the Golden Dolphin standard, which can reach 1:35.00.

There are five events for secondary school students: 50m freestyle, 50m breaststroke, 50m butterfly, 50m backstroke and 200m medley, the latter two levels are unlimited swimming style, 100m forward swimming and 50m forward swimming. The first three grades of the 50-meter freestyle are 1 minute 05 seconds.

Swimming is the skill of floating upwards under the buoyancy of the water, and relying on the buoyancy to make the body move regularly in the water through the regular movement of the limbs.

In the 60s of the 17th century, swimming activities were quite active in many parts of the UK. In 1828, the first indoor swimming pool was built in Liverpool's George Wharf, and this kind of swimming pool appeared in major cities in England in the thirties of the 19th century.

In 1837, the first swimming organization was established in London, England, and the first swimming competition in Britain was held at the same time. In 1896, swimming was included in the Olympic Games.

The highest organizing body for swimming is the International Swimming Federation, based in Lausanne, Switzerland. It was founded in 1908 on the initiative of the swimming associations of Belgium, Denmark, Finland, France, Germany, Great Britain, Hungary and Sweden.

1.A time of 51 seconds in the 50-meter freestyle is relatively normal.

2.For children, the 50-meter freestyle of 51 seconds is relatively good, but whether Gu Wu Ming's body is normal still needs to consider individual differences, training levels and other factors. Generally speaking, when children compete in swimming, they mainly exercise their bodies and skills, and do not have to be too much pursuit of results.

If you want to further improve your performance, you can do so by strengthening your training, improving your technique, etc. In addition, for children's swimming competitions, it is necessary to pay attention to safety issues, such as choosing a competition event that suits your level, wearing swimming equipment next to the appropriate orange, and abiding by the rules of the competition.

3.If you want to further improve your child's swimming skills and performance, consider enrolling them in professional swimming training or clubs. In addition, diet and physical exercise are also important factors affecting swimming performance, to ensure that children's diet is balanced and nutritious, and appropriate aerobic exercise and strength training will help improve physical fitness and swimming skills.

Finally, it is also important to pay attention to the safety of children during swimming, such as providing lifeguards if necessary, keeping swimming places clean and hygienic, etc.

According to the International Swimming Federation (FINA), the national best time in the children's 50m freestyle is men's second and women's second. Therefore, the 51-second defense is clearly not the usual time.

There could be a number of reasons why this time is slow. First of all, unskilled technique or incorrect posture can affect speed. Secondly, lack of physical fitness is also a possible cause. Finally, the competitive environment and competition experience can also affect a person's performance.

If you want to improve your child's swimming speed, you can start with the following aspects. First of all, improve your technique, including correct breathing and swimming style. Secondly, enhance your child's physical fitness, such as building muscle strength and endurance.

In addition to swimming, other sports can help improve your child's fitness and speed, such as running, basketball and football. In addition, paying attention to your child's diet and rest to ensure that they are well prepared physically and mentally can also have a positive impact on improving sports performance.

In conclusion, the normal time for a child's 50-meter freestyle should be less than 30 seconds. If your child's grades are slow, they can improve by improving their skills, improving their physical fitness, and participating in more competitions. At the same time, it is also important to pay attention to your child's diet and rest to maintain physical and mental health.

In response to this question, I think 51 seconds in the 50-meter freestyle is normal. According to the International Swimming Federation (FINA), the standard time interval for children under the age of 12 in the 50-meter freestyle is less than 1 minute, so 51 seconds is normal.

In order to improve the performance of children's 50-meter freestyle, the first thing to do is to establish correct swimming techniques, such as grabbing water, slapping water, raising head, patting feet, etc., these techniques are the basis of swimming, and only by being proficient in these techniques can we improve the speed of swimming. Secondly, do a good job of swimming training, such as warm-up exercises before each training session to avoid injury; Stretching exercises should be done after each workout to maintain muscle flexibility; Stick to each poor training session and don't stop suddenly, so as not to affect the training effect. Finally, you need to keep exercising, you have to keep swimming every day, and you can improve your swimming performance.

51 seconds in the 50-meter freestyle is a very good result for a child.

This is a good result in a normal children's competition, but it may be a bit more difficult to improve in a high-level competition. For ordinary children, this achievement has reached a high level, indicating that the child has a certain swimming talent and trains hard.

If your child wants to continue to improve their performance, consider strengthening their training, paying attention to details such as swimming skills and breath control, as well as protecting their body from overtraining and causing injury or fatigue.

It should be noted that the quality of swimming performance is not the only criterion, but more importantly, it is more important to cultivate children's interest and love, so that they can be happy and grow in swimming. At the same time, you should also pay attention to safety during swimming to avoid accidents.

In short, 51 seconds in the 50-meter freestyle is a good result for children, and children can further improve their performance by strengthening their discipline, but more importantly, they can enjoy the happiness and health brought by swimming.

According to the average result of the children's 50-meter freestyle, the average score of the 50-meter freestyle, the average score for boys under 10 years old is seconds, and the average score for girls is seconds. Therefore, if a child swims a slow 51 seconds in the 50-meter freestyle, it should be said that it is slightly below average.

Of course, for children's swimming performance, factors such as age and physical fitness also need to be taken into account. If the child is young and less physically fit to resist hunger, then a 51-second time may still be acceptable. But if the child is older and in better physical condition, then the 51-second time is below average.

In addition to age and physical fitness, factors such as proficiency in swimming skills, competition status, and track water quality will also have an impact on swimming performance. Therefore, if you want to improve children's swimming performance, in addition to strengthening training and improving physical fitness, you also need to pay attention to the preparation before the competition and the adjustment of the competition state.

By general standards, the average time in the children's 50m freestyle is around 40 seconds, so the 51-second time is generally slightly above average. However, it is important to note that each child's physical fitness is different in terms of hail chain neutralization training, so their performance will also vary. Therefore, it is necessary to judge whether a child's performance is normal or not on a case-by-case basis.

If the child is a beginner and has just started to swim in Yuanshan, then the 51-second score is very good. But if the child has some training experience and often participates in swimming competitions, then the 51-second time score is more average. In addition, it is important to note that the improvement of swimming performance does not only depend on individual efforts, but is also affected by external factors such as swimming venue, water temperature, water quality, etc.

Therefore, in order to improve swimming performance, in addition to personal training, you also need to pay attention to these external factors.

It is not normal, and the children's 50-meter freestyle is slow for 51 seconds. The general level of the 50-meter freestyle is around 25-30 seconds.

There are fewer records for 25 meters, and it is generally 50 meters freestyle.

World record in the men's 50m freestyleIt was created in 2009 by Brazilian swimmer Ciero Ferro.

December 18, 2009 in São Paulo, swam outA world record of 20.91 secondsgood grades. At that time, I still swam out in shark skin. Later shark skin was banned.

In the amateur world, a 20-minute swim in the 1000m freestyle is a very good result. If you don't achieve this result, you have to continue to work hard. Among the four swimming styles, freestyle is the fastest one, and it is easy to swim with less effort, so freestyle is suitable for both short and long swimming.

In everyday life, freestyle is very popular with swimmers. In the amateur world, a 120-second pace in the 100m freestyle is considered an entry-level level. Converted to 1000 meters, that's 20 minutes.

Many people can't make 20 minutes in the 1000-meter freestyle because of the stroke distance. Stroke distance refers to the distance the body travels in the water with each arm stroke. If you want to improve the stroke distance, you must first reduce the resistance in the water and keep the body streamlined; secondly, use the method of high elbow stroke, which will be faster than straight arm stroke; Finally, increase your muscle strength.

If you want to improve your swimming performance, you must train steadily and be patient to polish your basic skills.

That's a relatively fast speed for a freestyle of 25 meters and 17 seconds. Usually, a healthy adult can swim at this speed at a distance of 25 meters.

However, to assess whether this is considered fast, the following factors need to be taken into account:

1.Swimmer's age, gender, and physical condition: A younger adult may swim faster than an older adult.

At the same time, men usually swim faster than women. In addition, swimmers' physical conditions such as height, weight, and muscle strength can also affect swimming speed.

2.Swimming skills and training level: Swimming skills and training level have a significant impact on swimming speed. A professionally trained swimmer may swim faster than an untrained swimmer.

3.Pool conditions and water temperature: The size, depth, and water temperature of the pool can also affect the swimming speed. A standard pool with water temperature conditions may be more suitable for swimming than a smaller pool with a low water temperature and a noisy pool.

Taking the above factors into account, if a healthy adult is able to swim at a distance of 25 meters at a speed of 17 seconds, then this speed can be considered relatively fast. However, this speed may not be fast enough if compared to professional swimmers.

Fast. Freestyle swims to 25.17 seconds between Level 1 and Level 2 athletes. Freestyle is not strictly a swimming style, but a competition event of competitive swimming, and its competition rules have almost no restrictions on swimming style.

What kind of person is it, professional athletes don't count! Some enthusiasts can swim in less than 30 seconds!

50m freestyle national second-level seconds --- 50m pool: 27.50 seconds.

25m pool: 26.50 seconds.

50m freestyle national athlete seconds -- 50m pool: 23.50 seconds.

25-meter pool: 22.50 seconds.

Freestyle is one of the competitive swimming competitions. Strictly speaking, it is not a swimming position, its competition rules have almost no restrictions, crawling this posture has a reasonable structure, low resistance, uniform speed, fast, and is the most labor-saving swimming position. That's why people also call crawling freestyle.

In 1896, the first Olympic Games freestyle was included as an official event. Before the 50s of the 20th century, swimmers attached great importance to the role of hitting the water with their legs, and generally took turns to stroke with both arms for 1 time and hit the legs 6 times. Later, scientific research materials proved that the energy consumption of leg strokes is much greater than that of arm strokes, and the power to move the body forward mainly comes from the stroke action of the arms.

Therefore, modern freestyle techniques based on arms pay attention to the stroke of the arms and the coordination of the arms.