I don't know about “eye movements playing a vital role in coordinating the body’s musculature,” but otherwise: - The first class is reminiscent of guided medit

I don't know about “eye movements playing a vital role in coordinating the body’s musculature,” but otherwise: - The first class is reminiscent of guided meditation where one technique (afaik) is that your brain focuses on the extraneous input while the body relaxes, thus breaking the feedback loop of unconscious stress to muscle tenseness. This sort of meditation works wonders for muscle relaxation, you can't achieve that degree just by deciding to relax or with stretches. - I'd guess that the movements of each joint and muscle, among other things, improve blood flow and relieve tenseness, which makes them perform better afterwards. The focus on knowing the workings of your muscles is a big part of meditation for me—I've learned that normally I have a lot of tenseness that I can't shed by volition, and learned to look for this tenseness when my posture is bad. This sounds rather similar to what is said about the subject method in other comments. However, I'm not sure if this translates to muscle memory: I doubt that a bunch of sessions and occasional conscious alterations to the posture are enough to train the muscles to work a certain way. The article doesn't go into long-term effects, and notably in the last example the author didn't apply the lessons on her own for some reason, without getting back in the class (though it might've just been too early to develop the self-control).