What is the inner edge in roller skating? What's with the inner edge standing? How to stop a row of shoes in speed skating?

Inner edge, outer edge and flat edge are three terms that must be used in roller skating. The inner edge is the wheel between the two shoes, the outer edge is the outer side of the two shoes, and the flat edge is between them. I guess you have changed your mind when the inner edge stands. . After mastering a certain sliding method and obtaining a certain sliding speed, we should begin to learn the action of stopping sliding. There are various ways to stop. Here, only the eight-character stop method, T-stop method, two-foot emergency stop method and back slide stop method are introduced. After getting a certain forward sliding speed, stand with your feet parallel and apart, then tiptoe inward, press your feet gently with the inner wheels, bend your legs, slightly lean forward your upper body, squat down your hips, and stretch your arms forward to maintain your balance, which will gradually slow down until you stop. Exercise method 1. When sliding forward, stand with your feet parallel and apart. First, turn the toe of the right foot inward, press the ground gently with the inner wheel, and move the center of gravity slightly to the left, and complete the action according to the above posture. 2. On the basis of the above actions, practice according to the method of stopping the eight characters. The speed can be from slow to fast, step by step. T-stop method begins to slide forward with one foot. After the floating foot is placed in a T-shape at the heel of the sliding foot, the floating foot is slowly placed on the ground, and the inner wheel is gently pressed against the ground to slow down the forward sliding speed until it stops. Exercise method 1. The left foot is in front, the right foot stands in a T-shape at the back, the right foot pushes the ground with the inner wheel, the left foot slides forward, and then the right foot stops in a T-shape at the heel of the left foot. You can start at a slower speed so that you can experience the action. 2. On the basis of the above actions, accelerate the forward sliding speed and practice according to the T-shaped stop action. When your feet slide forward suddenly, your feet turn sharply clockwise (or counterclockwise) at the same time. The inner wheels of the left foot and the right foot press the ground at an angle of 90 degrees with the sliding direction of the outer wheel. At the same time, the body turns sharply to the right, the center of gravity shifts to the right leg, the knees are bent, and the arms are extended forward, so that the body can stop. Practice method: 1 Stand in the same place with your feet parallel and apart, practice in turn according to the above actions, and then slide forward at low speed to complete the action. 2. Keep a certain forward sliding speed, slide your feet forward in parallel, and make an emergency stop with your feet until you master it skillfully, so you can use your feet to make an emergency stop at will.