PTSD sufferers experience extreme stress reactions. An example of this behavior is when a car backfires and the person hits the ground as though they are under attack. I teach them how to retrain their extreme response so that they can befriend and regulate their response into being alert, thus repatterning away from their trauma and into their present reality.
One of the first Forrest Yoga basic moves I teach is active feet. This is especially important for people with PTSD because when in fear, or when triggered, they lose touch with being grounded and lose a sense of their strength. They get thrown off balance, literally. So knowing how to activate their feet helps them to reground and reconnect to the strength of their legs and to the reality that they are not being threatened.