What is the speed of short track speed skating? Short track speed skating is an ice competition on short track, and we know that physical condition is an important morphological index for short track speed skaters. Let's learn about the speed of short track speed skating first.
What is the speed of short track speed skating? 1 short track speed skating has always been a game full of accidents. Every athlete can skate on the ice at a speed of 50 kilometers per hour. Roller skates are so sharp. If an accident happens, will it hurt people?
ice sports
In order to make the ice and snow sports full of diversity, short track speed skating is naturally an essential project, so the standards in all aspects are extremely strict. Little friends who have skating experience know that wearing skates has little friction on the ice, and novices are prone to fall.
Short track speed skating
But for professional athletes, their requirements for speed are extremely high. In order to reach a reasonable level, athletes' dedicated ice surface has a fixed value in the world. Without specific requirements for ice, scientists began to study how to minimize the friction of athletes on the ice.
Friction during running
They found that the whole ice layer is divided into crystalline ice, ice-water mixture and ice film, and the top layer is the transition layer. The transition layer contains a small amount of "flowing water", not liquid water. Microscopically, water is actually some tiny ice slag and small ice particles, which will become liquid water molecules when rubbed against objects.
ice surface
These water molecules play the role of lubrication, so people will feel unstable when walking on the ice and fall easily. The transition layer generates enough sliding power, and athletes do not need to touch the crystalline ice under the transition layer when sliding. Moreover, in order to improve the skating speed of athletes, the skates on the shoes they wear are also extremely thin, which is also the reason why the skates are damaged during skating.
Fancy skates
Generally, the thickness of ice skates is about1.4 mm. The smaller the stress area, the greater the pressure on the ice surface, and the ice surface will be heated by friction under higher pressure, thus reducing its melting point. Therefore, when the skates touch the ice, the ice will become water. At this time, the friction between them will be minimized, and it will be easier for skates to slide on the ice.
How to ensure the safety of skating "braking"
The speed of short track speed skaters in international competitions can reach 50 kilometers per hour, which has surpassed Bolt, the fastest runner in the world. It is easy for people to stop at the time of impact because of the high speed, so the average runner will not suddenly brake after high-speed movement, and there will be a certain buffer way.
The speed of short track speed skaters is much higher than that of 100 meter sprint, so it is not easy to brake. In order to ensure the safety of brakes, designers have made great efforts on roller skates.
According to the standards of international ice rink competition, the short track speed skating venue is 60 meters long and 30 meters wide. Athletes definitely need to slide around the center of the stadium, and short track speed skating needs more turns, so the specific inner radius is 55.56 meters and the sliding length is 28.85 meters.
What is the speed of short track speed skating? How many meters is a short track speed skating lap?
One lap of short track speed skating is111.12m. In addition, the short track speed skating competition adopts the elimination system, and the competition is conducted in the form of preliminary, semi-final, semi-final and final. Short track speed skating is a winter Olympic event, which is called short track speed skating. The size of the competition venue is 30× 60m, and the length of each lap of the runway is11.12m ... 4-8 athletes start at the same starting line at the same time, and the ranking is determined by drawing lots.
During the competition, athletes can surpass their opponents at any time without violating the rules. Short track speed skating 19 originated in Canada in the 1980s. At that time, some speed skating enthusiasts in Canada often went to the indoor ice rink to practice, so there was an indoor speed skating competition. At the beginning of the 20th century, this competition was gradually widely developed in European and American countries.
What is the competition system of short track speed skating?
Short track speed skating wins by ranking, and the competition system adopts elimination system. The first is the group preliminaries, and the top 2-3 players enter the next round, that is, the semi-finals; By analogy, the top 2-3 players in each group will enter the semi-finals, and the top 2-3 players will enter the finals. Usually only four people will participate in the finals of 500m and1000m, six people can participate in the finals of1500m and eight people can participate in the finals of 3000m.
The athletes started at the same starting line. The station of the first round is decided by drawing lots, and then each round is allocated according to the result of the previous round, with the best result in the inner lane. During the competition, athletes can surpass their opponents at any time without violating the rules. If you collide with your body, trip or push or pull with your hands, you will be disqualified. Players who are disqualified for violating the rules cannot enter the next round. Do not leave the runway, slow down, collide or kick out.
China breaks the world record of short track speed skating mixed relay.
In the 20021-2022 short track speed skating world cup 2000-meter mixed relay race, which ended on the evening of June 5438+1October 2/kloc-0, China team composed of Wu Dajing, Ren, Fan Kexin and Qu Chunyu broke the world record! In the first group of the 2000-meter mixed relay race, the South Korean team led by Wong Tai Sin and A Lang Kim took the lead in breaking the world record with a time of 2: 38.451. However, only five minutes later, the Dutch player Schurtin and his teammates in the third group set a new record in 2 minutes and 38 seconds 094.
Subsequently, the China relay team showed their strength-Wu Dajing, Ren, Fan Kexin and Qu Chunyu raised this record to 2: 37.747 and successfully advanced to the semi-finals. In other competitions on 2 1, Wu Dajing appeared in the men's 500m group 13, ranking first in the group with 40.557 seconds, and successfully advanced. In the women's1500m1quarter finals, China's Zhang Yuting won the first place in the second group and Han Yutong won the first place in the fourth group, and advanced to the semi-finals.
How to understand short track speed skating
Short track speed skating, referred to as short track speed skating, has a specification of 30× 60m, and the length of each lap of the runway is11.12m ... Short track speed skating 19 originated in Canada in the 1980s. At that time, some speed skating enthusiasts in Canada often went to the indoor ice rink to practice, so there was an indoor speed skating competition. At the beginning of the 20th century, this competition was gradually widely developed in European and American countries.
1992 is listed as the Winter Olympics. The speed of short track speed skating looks fast, but it is actually similar to the speed of driving in the city. Excellent athletes can generally skate at a speed of 50 km/h.
What is the speed of short track speed skating? What are the characteristics of short track speed skating skates?
The skates used in short track speed skating competition are longer than ordinary knives (ball knives and flower knives). The main feature of speed skating is high speed, so the blade of speed skating knife is very long, narrow and flat, with large ice pushing area and small friction resistance, and short waist to reduce the center of gravity and air resistance.
First look at whether the blade is straight.
Turn the skates upside down and lift them up, with the skates facing up and the shoes facing down. Use one eye to see if the blade is in a straight line. The straighter the blade, the better. Whether there is a deep cut on the blade, if there is a deep cut on the blade, it will affect the skating effect, so try to choose skates with shallow cuts when buying new shoes.
Second, see if the connection between skates and skates is reasonable.
Generally, skates are perpendicular to them. The skates should be in the middle of the skates. The left blade of speed skating slightly deflects about 15 degrees to the right, and the right blade slightly deflects about 15 degrees to the left.
Third, see if the skates are bright.
Some skates began to rust and silver plating fell off due to poor steel or silver plating. Good skates should be bright and have no rust on the surface.
Fourth, see if the quantity is appropriate.
The number of skates must be suitable for me, neither too big nor too small. When trying on shoes, you should loosen all the shoelaces and then fasten them in turn. You must make sure that the quantity is appropriate before you buy it. Never make do with it.
Novices don't know much about skating or skating equipment, so experts suggest buying them in regular shops or ice rinks, because the quality and service of skates there are guaranteed. For beginners, don't choose too expensive shoes. Domestic brands with prices around 300 yuan are more suitable.