The bones of the ankle and heel are most stable when they are positioned in alignment. If they shift away from a center alignment, they become less stable.
Imagine pressure being placed on those unstable structures over and over again while you walk, run, or work.
That is where the injuries can take place.
Injuries can present as chronic pain in the foot, knees, hips, and back. They may also include acute injuries such as an ankle sprain.
Keeping your hindfoot in alignment allows not only your bones but also the surrounding muscles, tendons, and ligaments to properly handle the pressure placed on them from your feet through your back.