From my understanding… the Alexander Technique concepts work on making small improvements in posture by becoming self-aware of the body.
http://alexandertechnique.com/
The technique teaches awareness of tension held in the body and unbalanced ways you are holding your body without your realizing this is causing stress and discomfort. With awareness (mindfulness) you make conscious efforts to make changes of how you hold and carry your body. F.M. Alexander coined the term “constructive conscious control” for the mental awareness and focus used to change the body.
Small changes over time will lead to results to build upon. Even small changes are difficult to achieve if you don’t have good control over the body due to health issues, but small increments will achieve results. Progress cannot be forced or rushed. Through repeated small efforts we change the habit of how our body holds itself and moves. The changes will feel unusual at first, but with practice will become the more natural way of moving. This more natural movement will lower tension and stress and discomfort carried within the body.
If we are in better alignment within our body, then we are more free in movement, relaxed and at ease. We can have a more focused and peaceful mind. The mind can then be more able to help keep the body in proper form. This becomes a feedback loop between mind and body.
Yoga, Pilates, Tai Chi and Mindfulness Meditation seem ideal for helping to become stronger and more flexible and balanced in the body, as well as to become more mentally focused.
These same concepts also apply to how we can help a horse make small changes to their body and their movement so they can travel more freely, comfortably and able to carry a rider’s weight easier.