How is the air cushion in Nike shoes inflated?

The air cushion shoes are filled with helium. ?

Nike air cushion has five basic forms. Air cushion shoes are a kind of shoes that compress air in a container made of rubber, plastic, resin and other materials according to the working principle of gas compressibility, and are placed between the sole and outsole of shoes to form a hollow bottom.

In terms of soles, the materials used in sports shoes are basically eva, tpr and rubber, among which eva is the lightest and has good flexibility. Most sports shoes use eva soles, but eva materials have no friction and are easy to slip when walking on smooth ground, so some hard materials are generally added at the bottom.

Extended data:

Precautions:

1. Generally speaking, the stress on the outside of the foot is usually greater than that on the inside, which easily leads to varus and sprained ankle during exercise. The thickness of the air cushion increases the height of the heel and the feeling of the ankle becomes dull. The thicker the air cushion, the greater the possibility and potential energy of turning inward, and the more serious the damage. The reason is the same as that high heels are easy to sprain their ankles.

2. The instability of the air cushion will also form a flap effect (when the outer side of the foot touches the ground, the thickness of the inner side will increase accordingly, and the whole sole will form an inclined plane instantly, resulting in imbalance of the sole and varus ankle), which will increase the risk of spraining the ankle.

The child's feet are still developing. Wearing thin-soled shoes will help your feet fully touch the ground and make your arch and muscles grow better. And wearing platform shoes or sneakers with air cushion will make your feet stunted.

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