The Olympics are more about skills than technology. Diving suits have drainage channels to reduce splashes
The fierce competition in the 2008 Beijing Olympic Games is in full swing, and athletes from all over the world are competing for gold and silver with high enthusiasm. Do you know? There are many mysteries in the sportswear they wear. The Olympic Games is no longer a simple and pure competitive competition, it is also a high-tech competition.
■Shark skin swimsuit reduces resistance
American athlete Phelps’ body is a natural swimming machine. His arms are spread up to two meters, which is taller than his height. The 7.6 cm long torso is also much longer than the 0.8 meter legs. Test results show that his muscles produce much less lactic acid after exercise than most athletes, which makes him more endurance. His elbows, knees and The ankle joint is also very flexible.
He insists on training in the water for more than 4 hours every day. Phelps won 8 gold medals in this year’s Olympic Games. In addition to his talent and hard work, the help of new technology is also very important.
In a 200-meter freestyle swim, the athlete’s speed can reach 6.1 kilometers/hour. In order to reduce body resistance, many swimmers even shave their entire body hair. But research has found that even if you swim naked, the resistance is 9% greater than wearing a swimsuit. The nylon swimsuits that appeared in 1950 and the polyurethane fiber swimsuits that appeared in 1976 both help to tighten the body into a streamlined shape to reduce resistance in the water. But the real breakthrough came in 1998 when British athletes first used “shark skin” swimsuits at the Commonwealth Games. This swimsuit made of Teflon fiber has a surface that imitates the rows of small spine-shaped protrusions on the skin of sharks, which can more effectively allow water to flow around the body and reduce resistance. In October 1999, the “shark skin” swimsuit was officially recognized by FINA. In 2000, it was used by Australian swimming star Thorpe at the Sydney Olympics. He won the 400m freestyle gold medal, the 200m freestyle silver medal, the 4×100m, 4 ×200-meter freestyle relay gold medal, “Sharkskin” made great contributions.
The new swimsuit Phelps brought to the Beijing Olympics is the LZR Racer from the British Speedo company. Since its appearance in February this year, players wearing LZR Racer have broken 37 records, and this magical “shark skin” plays a major role.
These new “shark skin” swimsuits hug the skin from shoulders to heels, looking like Superman without a cape. Its primary function is to wrap around parts such as breasts and buttocks that will sway in the water to increase resistance. It takes a lot of time for people to squeeze themselves into this swimsuit. In addition to reducing drag, they also place the swimmer’s lower body in a more horizontal position.
■Diving suits have drainage channels
Used in the daily clothing of female members of the diving team, innovative fiber and fabric series using microcapsule technology of naturally extracted ingredients. The ingredients that help soothe and rejuvenate the skin are concentrated into microcapsules and evenly blended into elastic fabrics containing Lycra fiber. The fabric performs well in both diving competition uniforms and gymnastics competition uniforms. Its high-quality elasticity makes the fabric highly shape-retaining and prevents sagging and blistering, thus keeping athletes in good shape and allowing them to stretch without any restraints during competition.
In addition, there is a uniquely designed drainage channel at the back of men’s and women’s diving suits, which can quickly drain the water between the swimsuit and the body when athletes enter the water, reducing resistance and thus achieving the effect of reducing splashes.
■Table tennis uniforms prevent sweat from dripping onto the table
The sweat dripping from table tennis players on the table may cause the table tennis ball to suddenly change direction and drip onto the floor. Sweat can cause players to slip. The new competition uniforms just equipped by the Chinese table tennis team use a super moisture-absorbent and sweat-wicking fabric, and allow athletes to have a greater amount of armpit lifting when swinging their arms widely.
■Basketball uniforms have less friction and are more comfortable
It is understood that the jersey designed by Nike for the Chinese team specially uses Nike Swift technology. The length of the fabric used has been reduced by 25 centimeters, and the weight is 31% lighter than the current jersey. The new version of the Chinese team jersey will become more comfortable and well-fitting.
Generally speaking, Nike Swift is designed based on three working principles: First, it reduces resistance by reducing the seams in front of the body, making the seams in the same direction as the airflow and at the elbows and knees. The use of 3D tailoring on the legs and back can make the movement more free, while effectively reducing the resistance caused by the air when athletes move. Secondly, we should pay attention to heat regulation. Dark materials are placed in places that need to absorb heat, and light-colored materials are placed in places that need to reflect. Use different materials to make the air circulate more and help balance body temperature. Third, friction must be reduced. Low-friction accessories placed in the arms and inner thighs will help reduce friction between the bodies and improve the smoothness of the entire movement.
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