Speed skates are like slippers, they have only one fixed point; The two soles of curling events are different. The pedal foot is a non-slip rubber sole, while the sole of the sliding foot is very smooth with little friction.
The skates of speed skates are narrow and flat, so the ice pushing area is large and the friction resistance is small. A shorter waist also helps to lower the center of gravity, reduce air resistance and help to skate as high as possible. The front part of speed skates is fixed with the sole, and the rear part can be separated from the heel. In this way, when the athlete lifts his leg, the blade still contacts the ice.