The first type: 1-2-3-4, always with the left foot.

The second type: 123-4, left and right (empty) turn left in turn.

The third type: 12-34.

The fourth type: 1-2-34.

One of the "-"means to pause and empty a foot. This is a call sign, a continuous call sign. If it's a slogan, the order is different.

The correct posture of running

When running, lean forward slightly, keep your knees in a relatively low position and do a simple pendulum movement. In addition to the front legs, you should avoid raising your knees too high and taking too big a step. You should also pay attention to the back side of your body, bend slightly, raise your knees, and fully raise your heels.

When the feet of the front legs touch the ground, the knees and ankles are actually in front of the center of gravity of the upper body. At this time, there is a lot of extra burden on the knee joint and ankle. After a long time, you will feel pain on both sides of your ankle and behind your knee.

Due to the lack of sufficient elasticity of joints and ligaments, it is difficult for the heel to cushion the upward reaction of the ground, and the impact from the ground will be directly transmitted to the knee.

When running, try to keep your feet steady at every step. Due to the excessive inclination of the foot surface from left to right, the outside of the sole will land first when landing, and the recoil of the ground will slightly tighten the inside ankle.

When the uneven feet are inclined to the ground, the outer side of the knee joint will be subjected to excessive ground recoil force, and at the same time, one ankle will bear too much weight, and it is easy to get tired or even injured when running continuously.