If not, the general premise is that neurosis is expressed physically in the musculature. Specific kinds of movements can target and eliminate neurosis, which emerges as tension in chronically contracted muscles. Any exercise is bound to help somewhat, probably for more reasons than something like bioenergetics can claim, but still there are specific approaches for eliminating neurotic behavior in different character types. These specific exercises are accompanied by psychoanalysis in order to cultivate a conscious relationship between the mental and physical constructs of the patient's neurosis.
It seems like a pretty obvious insight to me now, having read a little bit about the subject. For example, flinching is a very pronounced, instinctual movement, and occurs in response to danger, right? So, if our environment can impel us to move, then certainly there are other movements, like flinches, that are more subtle in their expression, but reflect some internal, psychological mechanism, like a response to fear. Perception of body language, such as bad posture, supports this.
I have yet to read a satisfactory amount of info about the subject, but I can recommend what little I've read if anyone's interested.