An injury (trauma) happens on several different levels.
Firstly there is a physical trauma, based on an event of some kind that most people would call an injury; the broken bone, or sprained ankle or open wound. When a trauma such as this occurs it often sets in place a series of compensatory changes to the structure of the body and the area around the injury that allopathic medical practitioners often never consider.
Secondly, there is an emotional trauma that puts our bodies into “fight or flight”. This state of trauma often does not just go away as it is in many respects a “state”. Being in “fight or flight” also slows down our physical healing by putting greater demands on the senses and immune system. One of the things that bodywork does is calm our nervous system, shifting our state to a more relaxed one, which then makes us much more receptive to physical recovery.
Both of these traumas not only tighten the fascia, which prevents us from moving freely but they throw the whole structure off. In other words if you have an injury to the foot, knee, or hip; all of your weight gets shifted to the opposite side of the body and you start to lean to one side causing undue pressure to the opposite side of the body. Once our body has adapted to that shift it becomes normalized in the nervous system such that after your injury heals you now find yourself leaning off to one side, but thinking that you are centered and straight. Even after the injury is healed you have to deal with this new habit of leaning to one side.