Walking in the inner figure of eight is easy to accumulate more pressure on the outside of the foot, increase the chance of contact between the outside of the foot and the ground, and increase the pressure on the joints. Over time, the leg bones are deformed and become O-shaped legs. If you take the figure-eight step, your knees will also move outward and your legs will become X-shaped. What's more, it may lead to knee joint pain after many years and accelerate joint degeneration.
The outer figure of eight will affect the leg shape, because under normal circumstances, the toes generally point forward or slightly outward. If you walk in a figure of eight, it means that the toe angle outward is too large, and after a long time, your knees will move outward and your legs will be deformed. With the increase of age, it can lead to knee joint pain and accelerate joint degeneration, and even cause lumbar discomfort.