[Taekwondo Protective Protective] How to wear taekwondo protectives for taekwondo gear guards?

Athletes must wear protective gear during actual combat or competition.The protective gear includes helmets, armor, crotch, front arm, and feet.The crotch, the front arm, and the feet are worn in the tunnel. The female athlete must wear a woman to protect the crotch and the female chest protection.

The protective gear of Taekwondo athletes is divided into 1.5, the smaller the number, the smaller the protective gear.The number of children on the 1st is applicable, the number of young children or an adult woman is applicable, and No. 3 is suitable for men's 50, 54, 58 kg Levels, women's 51, 55, and 60 kg Levels.The number is only suitable for athletes of 83 kg or the highest person.

Do not cover your eyes when you wear a helmet, so that the elastic rubber bands at the chin are fixed. Do not be too tight or overly loose.If you feel the helmet is too tight, you can adjust the larger one, or loosen a little the thin rope on the top of the helmet.

When wearing the chest, the two rope diagonal lines are tied to the direction of the diagonal line, and the two Levels below are tied. Pay attention not to be too loose and too tight.Excessive armor affects the legs.The arm protection should be worn outside the forearm. This part is often used for blocking and will suffer heavy kicks.The feet should be placed on the face of the Bone, and the crotch should be worn upright, not crooked or not.If the protective gear is opened in the game, the referee on the stage can be significantly requested to suspend and organize the protective gear.But do not reach out at this time, otherwise you will be warned.The two sides should be hinted to the referee in the state of confrontation that if the game is in a fierce offense and counterattack, it is necessary to wait for the impact to finish the finishing.

Breast protection is a very important training equipment. Athletic athletes need to use chest protection targets to perform a lot of distance and time difference exercise. The real sense of actual combat must also be formed by the practice of chest protection.

1. What is the difference between the domestic version of the sneakers and the foreign version

1. price: Foreign versions of sneakers are generally more expensive than domestic versions, and the price is several times different;

2. Shoe type: The domestic version of the shoe is wide, and the foreign version will be much narrower;

3. Appearance: Due to the wide and narrow reasons, the ingredients of the foreign version are prone to form a trapezoidal structure of the upper narrow and width, and the domestic version may become a state where the upper and lower end tends to be flat.

4, sole material: For example, the outsole of most Vito 1 uses XDR's wear -resistant rubber outsole.The foreign version is a clear crystal transparent outsole.

In general, the core difference between the domestic and foreign version of the shoes is that the shoe is shoe, and the wide tadpole is indeed more in line with the design of Asian feet.However, Kuan Kuan brings a certain risk of rollover to some sneakers, which is indeed a little advantage in foreign version.Most domestic versions are trying to take care of the actual combat of the field.If your feet are narrow and feel that most of the front palms of the sneakers bought in the counter are empty, you can consider buying the same foreign version of the same sneakers.If you want to get the better performance of the same sneakers and put aside the sneakers with obvious design defects, the foreign version may not necessarily have a higher performance advantage than the domestic version.If you pay attention to durability, the domestic version of the shoe outsole is relatively durable.

2. Do you buy a big size in foreign versions?

Is the foreign version of the sneakers small?Yes, because the foreign version of the sneakers and shoes are narrow, it is very suitable for many wide -footed friends, so it is more appropriate to buy one size or half size, and in general, the size and size of foreign shoes and the size andThe size of the domestic shoes has corresponding control tables. When you buy it, you still look at the shoe codes when you buy it.

Third, the foreign version of the sneakers are suitable for who is suitable for?

The foot shape is narrow. Generally speaking, many domestic sneakers are empty. If you ca nt buy it, you can consider buying the same foreign version of the sneakers.Secondly, if you want to get a better configuration of the same sneakers, in addition to the obvious design defects, some of the foreign versions are also good; the last thing is the material of the soles, the domestic version of the shoe sole is relatively durable, thisNo need.

4. Why is foreign version of shoes generally more expensive than the domestic version

Because in the supply session, the domestic version of the supply has a lower threshold, coupled with a large amount of goods, the low market price in China is normal.And the foreign version, returning to domestic shoes from abroad, this itself has established a threshold, coupled with the uncertainty of the supply and the sales volume in terms of sales.Essence

The foreign version is expensive and does not mean that the foreign version is good, so you don't have to believe in the concept of "better foreign version of shoes". It is a better product for your foot -shaped sneakers.

1. Who invented the first Telescope in the world

In 1608, Hans Lippershey, Midelburg, the Netherlands, created the world's first Telescope.Once, the two children played with a few lenses in front of Li Poore's shop. They watched the trend in the distant church through the two lenses before and after, and they were highly high.Li Populia picked up two lenses and looked at it, and the turbines in the distance were enlarged a lot.Li Poor ran back to the store and put two lenses in a Tube. After many tests, Hans Lee Polm invented the Telescope.In 1608, he applied for a patent for the Telescope he made and followed the requirements of the authorities.It is said that dozens of Telescope glasses in the town claim that the Telescope has been invented, but it is generally believed that Hans Lipor is the inventor of the Telescope.

The news of the Telescope invented quickly spread in European countries. After the news of Italian scientist Galileo learned the news, it made one.The first Telescope can only enlarge the object by 3 times.One month later, the second Telescope he made can be enlarged by 8 times, and the third Telescope can be magnified to 20 times.In October 1609, he made a 30 -fold Telescope.Garri used a self -made Telescope to observe the night sky. For the first time, the surface of the moon was discovered, covering the mountains and the cracks of the crater.Since then, the four satellites of Jupiter and the sunspot movement of Jupiter have been discovered, and the conclusion of the sun is turning.

Second, astronomical Telescope isWho invented

Almost at the same time, German astronomer Capeller also began to study the Telescope. He proposed another astronomical Telescope in "Kither". This Telescope consists of two convex lenses. Unlike Galileo's Telescope, it is wider than Galileo's visual field.But Capeler did not create the Telescope he introduced.This kind of Telescope produced for the first time from 1613 to 1617. He also created a third convex mirror with a third convex mirror in accordance with the suggestion of Cairple.EssenceSaisa made 8 Telescopes and observed the sun one by one. No matter which one can see the same shape of the sun sunspots.Therefore, he dispelled many people who thought that sunspots might be the illusion caused by the dust on the lens, and proved that the sunspots were indeed observed.When observing the sun, Shanya was equipped with a special Shading glass, and Galileo did not add this protection device. As a result, he hurt his eyes and was almost blind.In order to reduce the color difference between the refraction Telescope in the Netherlands, the color difference between the refraction Telescope made a Telescope with a length of nearly 6 meters in 1665 to explore the halo of Saturn. Later, it made a nearly 41 -meter -long Telescope.

Third, who was invented by reflecting Telescope

In 1793, William Herschel, the system made a reflective Telescope with a diameter of 130 cm in the diameter and made of copper tin alloy, weighing 1 ton.

In 1845, the reflex Telescope made by William Parsons in Britain, with a diameter of 1.82 meters.

In 1917, Hooker Telescope was completed in Wilson Observatory, California, USA.Its main reflexive diameter is 100 inches.It was using this Telescope that Edwin Hubble discovered the amazing fact that the universe was expanding.

Fourth, who invented the refractive Telescope

In 1930, the German Bernhardschmidt will reflect the advantages of refraction Telescope and reflecting Telescope (the refractive Telescope image is small but the color difference and the larger the size, the more expensive the reflected Telescope, the low cost, and the reflex mirror can be made very large.But the existence) combined into the first reflection Telescope.

After the war, the reflective Telescope developed rapidly in astronomical observations. In 1950, a Hale reflecting Telescope was installed on the Paloma Mountain.

In 1969, a 6 -meter -diameter reflex mirror was installed on Mount Pastulfv in the former Soviet Union.

In 1990, NASA sent the Hubble Space Telescope into the track. However, due to the mirror fault, the Hubble Telescope did not fully play its role until 1993 that the astronauts completed the space repair and replaced the lens.Because it can not be disturbed by the atmosphere of the earth, the image clarity of the Hubble Telescope is 10 times that of the image of similar Telescopes on the earth.

In 1993, the United States built a "Kake Telescope" with a caliber of 10 meters on the Monakia Mountain in Hawaii. Its mirror was composed of 36 1.8 meters of reflectors.

In 2001, the European Southern Observatory in Chile developed the "Very Large Telescope" (VLT), which consists of 4 Telescopes with a diameter of 8 meters. Its conservation capacity is equivalent to a 16 -meter reflected Telescope.

On June 18, 2014, the top of Cerro Amazones, Chile, was used to place the world's largest power Telescope "European Grand Astronomy" (English abbreviation E-art).Salo Amazon is located in the Atacama Desert with an altitude of 3,000 meters.E-In the Eye of the world, the "largest sky in the world", is nearly 40 meters wide and weighs about 2,500 tons. Its brightness is 15 times higher than that of a long-distance mirror, and its clarity is 16 times that of the Hubble Telescope.The Telescope costs 879 million pounds (about 9.3 billion yuan), which is expected to be officially put into use in 2022.

A group of Telescopes that were under construction began to impact the white giant brothers on the Monakia Mountain.These new competitors include the 30 -meter -caliber "Thirty Meter Telescope (TMT), 20 -meter -caliber Giant Magellan Telescope (GMT) and a 100 -meter -caliber (GMT).Overwhelming Large Telescope, referred to as OWL).Their initiative pointed out that these new Telescope can not only provide space pictures like a photo of the Hubble Telescope, but also collect more light.There are more understanding and see the planets around the distant stars.

What equipment is needed in winter ice climbing

1. Binghao

Binghao provides a focus point.The ice -climbing ice ax is usually a technology pick, which is different from the straight ice average for walking in the snow. The shape and the degree of bending of the picking handle are more suitable for the climbing of vertical ice walls.

2. Bingfish

Bingfish is similar to ice ax in use, which is basically divided into snow walking and ice climbing.The outer teeth of the ice on the snow are flat tooth, which is more conducive to friction on the snow surface.The ice -climbing ice is a higher -intensity vertical teeth. It usually uses a full -card structure, which is more stable and can better convey the power of kicking.

3. Ice cone

Different from the use of expansion bolts as a protective point (anchor point) during exercise climbing, most of the protective points during ice climbing use ice cone.Due to the effects of the terrain, ice condition, and temperature, the strength of the ice cone anchor in the ice will also be very different.

4. Power rope

Ice climbing is recommended to use waterproof power ropes, because the low water absorption power rope can reduce the risk of rope icing, so as to ensure that the rope is normal through the protector.The mainstream diameter used by the rope used by ice climbers is lower than the Rock climbing, usually Single Rope, which is less than 9.7mm, or is protected with half ropes.

5. helmet

The rope protection system used in ice climbing is almost the same as climbing. The same protector, seat Belt, helmet, fast Hanging, main lock, etc.Ice climbing must wear helmets, because the focus of ice climbing is almost done by the damage to ice through ice clamp and ice ax. Therefore, there will be many broken ice flying in the sky. At the same time, it is recommended to use supporting masks or goggles to protect the eyes.

Basic skills

1. Grab: grab the raised part of the rock by hand.

2. Pulling: Hold the edges, gaps, and edges of the rock with your hands.

3. Pull: Under the premise of grabbing the firm fulcrum in front of the front, the arm is stuck in the rock wall, holding the stone seam, and pulling the body upward.

4. Support: Use steps, gaps, or other terrain to move your body up or left and right with your arms and arms.

5. Push: Use the side, the rock body or object below, and move the body with the power of the arm.

6, swelling: put your hand into the gap, and rose with your palm or fingers to grab the gaps of the rock as a fulcrum to move your body.

7. Passion: Use the inside of the forefoot or toe to support the body to reduce the burden on the upper limb.

8. Cross: Use your own flexibility to avoid difficulties to seek favorable support points.

9. Hanging: Hang the rock with a toes or heels to maintain your body balance and move your body.

10. Step: Use a large fulcrum in the front of the feet to reduce the burden on the upper limbs and move the body.

Ice climbing technical essential

1. Basic ice climbing technology

(1) Usage of Ice Pa: Every part of Ice Ka has its own use. Choosing the appropriate ice axard depends mainly on the slope and type of ice and snow slope. Generally, a short-handed ice star with a length of 40-50 cm.Reasonable use of ice aox can save a lot of physical strength.

(2) Front teeth technology: In addition to 12 teeth at the bottom of the bottom, there are front teeth. When the ice wall is climbing, the ingredients of the outer teeth are pierced into the ice wall as the support point of the foot. This climbing method is called the front tooth climbing or German styleClimbing method.Continuous use of front teeth will cause small feet and ankles to fatigue, so you must learn to relax and rest.

(3) Fully -contact climbing: The first step is to step on the second step, then relax the ankle joint at any time, and all the ice teeth are exposed to the ice surface.

2. The way to climb

(1) Three o'clock climbing method: When the ice and snow slope is less than 35 degrees, the climbing method is to hold on the ice average with one hand, the ice ax's rope is covered on the wrist to prevent falling off, and the bottom tip of the ice ax is used on the ice on the ice.The Ice Fojian must be in contact with the ice slope at least two points with both feet.

(2) Balanced climbing method: When the slope is 35-50 degrees, hold the upper part of the ice average in one hand, hold it on the handle of the ice ax near the bottom of the bottom, the high position with the front teeth, and the low-footed feet are exposed to the ice surface.The role of Binghao at this time is to maintain physical balance.

(3) Bullet climbing method: When the ice and snow slope is 45-60 degrees, it should be held on the ice ax and hold it on the handle close to the bottom of the bottom.The top of the pick is inserted into the ice and snow slope as a fulcrum, climbing the front teeth under the feet.

(4) Double pick climbing method: When the degree of ice and snow slope is greater than 60 degrees less than 90 degrees, and the hardness of the ice slope is not very large, the climbing method is to hold the top of the ice pick tightly with both hands and plug in the ice and snow slope like a dagger to rise or fall alternately.If the hardness of the ice slope is high, the climbing method is to hold the bottom of the ice ax and split the tip of the picking into the ice.

precautions for ice climbing safety

1. To survey the terrain before the ice climbing, check the ice quality, and choose the climbing route and time.

2. Master the weather changes.Ice quality and weather have the greatest impact on ice climbing.Ice climbing should not choose the crispy area of ice. The crispy ice is easy to break, and the ice average and icing cannot be caught.The ice layer of the good ice quality may be slightly soft, and the inner layer is harder.

3. When the ice water is not good or the situation is sinister, it is necessary to use a safety rope for protection.

4. Except for some artificially poured ice walls, ice climbing is generally selected in the deep mountain canyon. The wind in the deep mountain canyon is very large, and the wind is not conducive to ice climbing.

5. Do not excessively force when you push the ice ax into the ice surface, and do not shake the ice ax, because this will break the ice surface and affect its stability.

6. When kicking, you must force the ice to tip into the ice.The correct movement is: while lifting the feet, the knee joint is the axis, and the weight of the mountaineering shoes is used to make the feet kick forward steadily, so that the two front teeth of the ice can be tied into the ice surface.noodle.Note: Don't shake your feet up and down, otherwise it will easily break the ice surface and not firm.In addition, the feet should be straight. If you are tied into the ice on the shape of an octagonal shape, you cannot give full play to the role of ice.

7. In addition to the necessary protective measures such as seat belts, wearing a helmet must be worn during ice climbing to prevent crushing ice.

Where is the ice climbing?

1. Heilongtan, Miyun County

Suitable for beginners.Located on Shicheng Township on the west bank of Miyun Reservoir, Miyun County, Beijing.You can take the bus from Dongzhimen to Danti Cloud, and then transfer to the Black Dragon Lake of the Black Town.The slope of the ice wall is about 60-75 degrees, which is not difficult.

2. Taoyuan Xiaogu, Miyun County is suitable for competitions and professional climbing.The ice waterfall in Taoyuan Xiangu, Miyun County is very imposing. The ice surface on the mountains is more than 60 meters high, about 100 meters wide, and it is difficult to climb. It can be protected above.The ice wall on the underworld is even more difficult, and some places belong to the four Levels of difficulty.

3. Four Girls Mountain Shuangqiaogou

Shuangqiaogou can be called China's unique ice climbing resort. It is about 3800 meters above sea level.The mountain streams are flowing in the stream, and in the winter, there are more than a hundred ice waterfalls.Ice waterfalls are generally long, small, and soft in ice, suitable for leisure climbing.

4. Sichuan Hailuo Gulf Gallery

Sichuan Hailuo Glacier is the lowest glacier in the world and the longest of the 71 glaciers of Gongga Mountain.Dabing Waterfall is 500-1100 meters wide and 1080 meters high. It is the highest and most spectacular glacier waterfall found in my country so far.The glacial tongue extends into the virgin forest 6 kilometers, forming a strange landscape coexisting with the Hailu Gloss Glacier and the forest.

The Hailugou Glacier is the closest to the big city and the easiest to enter the low -altitude modern marine glacier. The transportation is very convenient. Hailuogou also has many Hot spring groups of different sizes.Among them, the Hot spring of the second camp is the most.In addition, there are the lower layers of glaciers between camps 3 and No. 4. Due to the dissolution of glaciers, many ice cracks occur, and ice climbing enthusiasts should pay attention to safety.