Actually, it is more correct than you think. I will not venture as to men/women, but, the greatest problem with bodies not going where they should go naturally is the head. I don't mean where we place it, etc. I mean letting it get in the way of the movement. Don't think... just do!
Oh isn't that easier said than done! It's a question of having the
confidence and ability to relax in the right way. If only there was
a magic key!
Our bodies know to stand up straight; balance; walk in a rhythmic fashion; even turn and remain in control. It is when we seek to apply all sorts of technique/s (in AT, skating, and ballet) other than just allowing the body to move naturally, that we interfere with its movement. Students must learn that dance is not to make the body do something unnatural, rather to enhance/control what the body will do naturally. It is a known fact in kinesiology that the feet/legs will naturally go directly under the shoulders when allowed. Since they are attached to the core (center of balance) at the hips, the hips will go as well.
I was going to take issue with you as the Kinesiology I knew about
is a quack medicine based on the practitioner's subjective assessment
of the patient's muscle response to specifically imposed loads as a
diagnosis of bodily ailments or so called energy imbalances and blockages.
It seems to have no basis in fact and at best is contentious.
However Wkipedia calls that Applied Kinesiology, though the practitioners
both here, in the US and elsewhere don't bother usually with such
accuracy/pedantry and seem to happily call themselves kinesiologists etc.
But your usage didn't seem to be that which is why I looked further. You
are talking about Kinesiology as the study of human kinetics, meaning
physical motion, movement and function (or body mechanics) which is
a more scientific usage I'd never come across.
Now, I'm not saying that you haven't experienced those things that you mentioned. Neither am I saying that these problems do not exist. Yet, I know that the reason is not that it doesn't go naturally, rather often times what we 'think' is natural is not, at all.
So I'll agree that "the head" interferes but something else can as well.
And that is the individual's actual physical ability, be it the range of
movement or muscle strength. Many people arrive at dance (including
me originally and prior to tango) without any realisation that they are
about to ask of their body things that they don't do in normal life.
Struggle equals tension. If the body feels stretched and tested by those demands
then the necessary relaxation is impossible. For that the loads have to be
comfortably within the body's limits. Many of us come to dance later
in life unprepared and at various levels of unfitness. In an ideal world
fitness should come first but usually it doesn't. So I for one will give a big cheer
when I come across a teacher(s) who, faced with a new and unfit class,
starts with proposing a gentle regime of in-class and at-home preparation.
Perhaps it will never happen in fear of putting people off. After all many
(most?) teachers don't even start a class/workshop with a warm up. If
you are at one who does, look around at the participants at the variation
in the range of movement that individuals can achieve to get some
understanding of the problems teachers have with classes.
