Bold emphasis is mine.
It explains that scientists studying the mind have proven that correctly imagining a specific exercising can increase muscle strength.
How could it be possible to increase strength just by thinking without physically moving a muscle? The answer lies in the fact that when we work out we are sending nerve impulses from the brain to the muscles. These muscles flex or relax in response to impulses from
motor neurons. The firing of those neurons is determined by the strength of electrical impulses sent by the brain.
I know the above quote isn't actually your words so my comments are not directed to you specifically.
Mr. Painter talks about "muscle strength", and muscles flexing and relaxing. I would expect that the goal of this type of training is to keep the muscles from
flexing, in order to train something deeper
and more global
And what about the "feeling" created by movement without movement, through a relaxed body? What is that
, exactly? Is it like the feeling of a sudden drop in an elevator (just as a crude example)? This isn't just supposed to be a trick of the imagination, is it? Something is supposed to actually
happen that triggers a "feeling," that isn't an obvious muscular contraction.
So, what I read from Mr. Painter, sounds off ... or at least incomplete. And this is just to my (mostly) untrained eyes. Of course, I've only read what David posted. There may be something more.