What kinds of roller skating are there?

Roller skating-gravity is the only enemy.

1. The idea of inline skating has been going on for about 300 years. At first, a Dutch man in the17th century tried to enjoy skating in summer. He nailed a wooden roller to sawdust and put it under his shoes.

2. The first pair of patented inline skates was registered by M.PETIBLED in Paris on 18 19. In addition to Petibled, there were many other inline skating models produced in Europe and America.

3. 1979, a young ice hockey player named SCOTT OLSEN found a pair of old inline skates in a sports equipment store. Recognizing the potential of this design, he hitchhiked to Chicago to buy a roller skating design that was discontinued by the roller skating company. He named his new company ROLLERBLADE, which is now synonymous with roller skating.

Since then, inline skating has become very popular all over the world. In the United States alone, the inline skating market has grown steadily by 22.6% in one year since its launch.

Today, inline skating ranks among the five most popular sports in the United States, and it is also the first place for men aged 6- 17 to participate in sports most often.

Roller skating has become more challenging.

1. The stunt challenge of inline skating must be attributed to skateboarding. The campaign started at 198 1. At that time, skateboarders used skateboards to start experiments on the same types of streets and green spaces, and the handrails jumping on the stairs fell from top to bottom.

2. With the understanding of this sport, roller skates are gradually designed to cope with stunt inline skating, which allows skaters to slide on the street and have more control over obstacles.

3. The United States held a series of inline skating competitions in the 1990s, and ESPN held the first Extreme Games in Rhode Island, USA from 65438 to 0995, which made inline skating a mainstream sport and gained the attention of the global media. At the same time, professional roller skaters gradually won the support of sponsors.

International roller skating organization.

1, Attack Skaters Association (ASA) was founded in 1995 by Mark Shays and a group of top professional players.

2.ASA is an internationally authorized roller skating organization, and established the ASA Professional Tour. Other projects authorized by ASA include NBC Gravity Games and ESPN X Games.

Inline roller skating equipment

Of course, the most important equipment is a pair of roller skates. From a distance, each pair of roller skates looks the same, but due to serious wear, athletes' roller skates are equipped with special designs.

Shell shell

1 is the hard part of roller skates, mostly durable plastic. It can not only resist the wear and tear in sports, but also withstand the scraping and landing impact brought by fancy skills.

2. In-line roller skating for competition is not equipped with ventilation design like ordinary leisure roller skating, because the ventilation system will reduce the thickness and durability of the shell.

3. The shoe-shaped part above the sole of the shell is tied with shoelaces or buckles, so that feet can put on roller skates smoothly.

4. The shell of most roller skates is equipped with hinges, which connect the boots and the lower half of the shell, allowing athletes to bend their legs or adjust the position and angle of their calves while maintaining rigidity.

Power supply belt

1. Now some roller skates are equipped with strong straps, which extend from the back of the insole to the front of the sole to prevent the athlete's heel and sole from shifting.

The lining of a shoe lining.

1, used to cover feet, and its function is similar to that of feet. It is made of foam rubber with different densities. The higher the density, the harder the buffer protection and the stronger the roller skates' response.

base

1, the base is the structure connecting the shell and the wheel. In-line roller skating used in fancy competitions must be more able to withstand impact than ordinary leisure roller skating. The material is aluminum alloy or reinforced plastic, but most athletes use aluminum alloy base.

2. The design of the base close to the ground keeps the athlete's center of gravity low. At the same time, the closer the base is to the foot, the greater the friction that can be provided to the athletes.

3. The current trend is that the base is getting closer to the ground and keeping the distance less than 50-67 mm wheel size.

As for the connection between the base and the shoes, rivets are used to connect the two because of the great friction in the stunt performance. Some manufacturers have also begun to install hidden rivets to avoid premature wear.

Friction plate abrasive sheet

1. This rectangular thin sheet is recessed into the arc groove in the middle of the bottom, and is usually placed on the surface of the shoe between the second and third wheels to protect the shell from wear when the athlete performs friction movement.

2, the material is metal or plastic. The metal friction plate enables athletes to keep a better balance and avoid wearing when contacting with other metals. Street athletes, on the other hand, have more plastic friction plates to deal with general obstacles.

Friction nail grinding column

1, a plastic pin usually placed between the second wheel and the third wheel. The function is to provide greater shell protection for athletes when rubbing.

Wheel wheel

Most of them are made of polyurethane, which is similar to rubber and has strong scratch resistance.

1, size: different sizes, ranging from 44 mm to 82 mm, the bigger the wheel, the higher the speed, and the larger the impact absorption area.

Smaller wheels give athletes greater autonomy, faster acceleration and slower sliding speed. Because there is more space at the bottom of roller skates, it can be more handy when doing friction movements.

Acrobatic inline skaters generally use smaller wheels, and there is a tendency to install smaller wheels on the base.

Hardness coefficient: used to measure the hardness of wheels. The higher the coefficient, the more durable and the higher the speed, but the smaller the traction force, the smaller the earthquake resistance. Now it has been improved, and acrobatic roller skaters generally use wheels with high hardness coefficient.

2. Speed and durability.

3. Wheel arrangement: * * There are three ways to install wheels on the base.

Rocking chair type: The second and third wheels protrude from the first and fourth wheels. Viewed from the side, it looks like the bottom of a rocking chair or a wide parabola.

Flat type: four wheels are installed at the same height, all of which can land, and about one-third to half of the athletes use them.

Anti-rocking chair type: Just the opposite of rocking chair type. The second and third wheels are smaller or lower than the first and fourth wheels and look like rainbows on the side. This installation method limits the turn of athletes, but it is better to grasp obstacles such as railings.

protective gowns

1. All athletes wear helmet emergency protection pads, including wrist pads, giant knee pads and elbow pads. The knee pads and elbow pads worn by stunt roller skaters are bigger than those worn by ordinary leisure people. The shin guards can play a protective role when the hurdles fail.

2. In the official competition, amateur athletes must wear a full set of protective pads, including wristbands; Professional players only need to wear a helmet to cover their knees (knee pads or knee-length pants if they wear shorts)