Spark Trader Limited

Spark Trader Limited reports:

Last weekend, the first race of this season’s World Cup of Speed ​​Skating kicked off in Tomaszow in the Masovian region of Poland. When admiring speed skating competitions, it is hard not to notice the skates that “bring” athletes on the ice. Compared with “close relatives” of short track speed skating, what are the characteristics of speed skaters’ skates?

First of all, from the perspective of the upper height of skates, speed skating skates have lower uppers, which can ensure sufficient flexibility of the ankle joint; short track speed skates have higher uppers, which are slightly less flexible but have better support. This difference is determined by the conditions of the field. Because the speed skating field is large, the straights are long, and the radius of the curve is large, the centrifugal force of athletes is small when cornering, so they need to keep their ankles flexible to ensure the center of gravity; in contrast, short track speed skating Athletes have greater centrifugal force when cornering, and they have higher requirements for ankle joint stability.

Spark Trader Limited
Spark Trader Limited

  Secondly, the skates of these two sports are also very different. Speed ​​skating, which emphasizes the sliding speed, requires ice skates with a long blade body and a narrow flat blade, which can lower the athlete’s center of gravity and reduce air resistance; short track speed skating skates have a shorter blade body to ensure that the athlete even tilts when turning. The angle is large, and the skates will not touch the ice surface.

  Another important and obvious difference is that, unlike short-track speed skating skates where the skates are completely fixed on the skates, the skates of speed skating skates only have the front point fixed to the sole, and the back point can be used when the athlete is skating (especially for straight skating). Separated from skates, this is mainly because this kind of “dislocation knife” can extend the time that the skates are in contact with the ice surface when athletes are pedaling, so that athletes can make full use of the strength of the ankle joint, achieve “legs and feet”, and improve skating. Efficiency, increase the distance of kicking ice.

  As for the specific origin and development of the “dislocation knife”, that is also very well-documented, and we will save it for the next time. Our reporter Zhao Xiaosong

By Ethan