The twisted condition of the whole body is achieved by rotating
the shoulders as far as it is physically possible into the back
swing movement whilst the heel of left foot remain firmly on
the ground, the hips held in the frontal facing position for as long as possible and the right leg remaining slightly bent.
However once the whole body has been formed into this twisted
condition, it is vital that the twisted condition
of the whole body unit must be maintained throughout the down swing and the follow through movement, right to the conclusion of the golf swing.
Therefore as long as the hips and the compact upper body unit rotates around the core of the spine, the club head will be returned back to the
ball square to the target line.
At the point of impact the right shoulder/right upper arm muscles force
the arms to interact thereby straightening the right arm, thus
pushing the club head through the contact area.
With practice it is possible to stop the arms from releasing
until you want to force the right arm into the fully straightened
position.
I can assure you that as long as the hips continue to rotate towards the target area, the twisted condition of the whole body will be maintained through to the conclusion of the golf swing movement.
Is the final photo, the whole body is delivering the energy into the back of the ball.
Therefore the power of the golf shot is generated by a combination
of actions:-
(1) The whole twisted body rotating around the central core of the spine.
(2) The interaction of the arms.
To fully understand this action, experiment with this movement
as follows but in very slow motion:-
At the end of the back swing movement force yourself to hold the
body in the twisted condition as shown in the photo to the left
(photo 1) with the left arm close to the right shoulder.
Therefore whilst holding the whole body in this twisted condition, simply rotate the hips towards the target area
for a very short distance whilst the whole body remains in the twisted condition ( Do not try to rotate the upper
body.)-- you will notice that the whole twisted body unit will
be forced to follow the movement of the hips and rotate around
the central core of the spine.
Therefore as the rotational movement of the hips force the whole twisted body unit to rotate around the central core of the spine, thus
rotating the shoulders back to the parallel to the
target line, the club head automatically returns to the ball square
to the target line, and because the left arm remains close to the right shoulder throughout the down swing movement, the club head automatically
strikes the ball with a descending blow.