1, walk in a straight line (applicable to inner and outer characters). Draw two parallel straight lines (one punch apart) on the ground, and practice walking along the straight lines, from small to large, from slow to fast.
2. Stand against the wall (applicable to the inner character). Stand with your back against the wall, feet apart, every day 15 minutes.
3. Avoid sleeping while sleeping. Sleeping on your stomach will make your ankles turn inward or outward unconsciously, which may also affect your walking gait for a long time.
4. Put a comfortable and soft insole in the shoe to make the pace more stable and the body more relaxed.
5. Wear shoes that are too narrow (especially toes) and have too high heels. Usually slowly stretch the calf muscles, move the ankles, relax the achilles tendon, and properly pull the muscles behind the achilles tendon and calf.
Extended data
If both shoes are severely worn on the outside, it is probably because the feet are splayed inward when walking, and the knees on both sides are separated outward, resulting in the inward bending of the calves (genu varus, commonly known as "O" legs).
This way of walking tends to accumulate more pressure on the outside of the foot and increase the pressure on the inside of the knee joint. After a long time, it may aggravate the "O" leg, cause meniscus injury and medial cartilage wear of the knee joint, and cause arthritis.
References:
Baidu encyclopedia -O-leg