Post by imperfectgolfer on Sept 1, 2013 22:05:14 GMT -5
This is how BM summarised his ideas on the release-: ""To achieve it, from the top pull the club in the direction of the shaft CONTINUOUSLY as you begin to straighten your right arm (and your left arm slightly if it was bent) out away from you away from the target WHILE you preserve as much of your FULL shoulder turn as you can. About half-way down, WHILE YOUR CHEST IS FACING YOUR HANDS, use your right shoulder and right arm to re-position themselves to help you rotate the club about a point between your hands. When the club has some speed from this rotation, and the clubhead is level or slightly lower than your hands, use everything you have to pull the grip off of the club as your hips move left, open, and you lose all of your forward bend."
The bold-highlighted sentence summarises Brian Manzella's recommendations for phase 3 of the downswing (roughly between P6.5 and P7).
Note that Brian Manzella offers two major points of advice for phase 3 of the downswing - i) "use everything you have to pull the grip off of the club --- as you ii) lose all of your forward bend.
In other words, Brian Manzella is seemingly recommending that a golfer should "pull upwards on the grip with all his might" in a direction that is towards the center of the body while "jumping up" and losing all of one's forward spinal tilt (which is often referred to as "standing up" through impact). Brian Manzella also often refers to a near-impact (late phase 3) "pull-up" phenomenon as "going normal", which he seemingly signifies as being the biomechanical phenomenon of "pulling the grip end of the club straight up" directly away from the ball as one is reaching impact - with the direction of pull being perpendicular to the clubhead path arc.
Why is Brian Manzella offering this idiosyncratic advice? The only explanation that I have seen him offer is that the CF-loading of the club produces a CF force of 100lbs as it nears impact, and he believes that one must therefore produce an opposing force that is directed centrally (centripetally) to counteract that CF-loading force. I have never understood the rationale for this "pulling up with all ones' might" argument.
Now, consider this one-arm golfer, who only uses the right arm because his left arm was amputated.
Here are capture images form his end-backswing, mid-downswing and near impact.
How can he produce that "normal force" that is directed centrally in phase 3 of his downswing if he doesn't have a left upper limb attached to the golf club? How can he routinely hit 240-250 yards drives without generating that "normal force" because he cannot "pull up with his non-existent left arm/hand"?
Jeff.
The bold-highlighted sentence summarises Brian Manzella's recommendations for phase 3 of the downswing (roughly between P6.5 and P7).
Note that Brian Manzella offers two major points of advice for phase 3 of the downswing - i) "use everything you have to pull the grip off of the club --- as you ii) lose all of your forward bend.
In other words, Brian Manzella is seemingly recommending that a golfer should "pull upwards on the grip with all his might" in a direction that is towards the center of the body while "jumping up" and losing all of one's forward spinal tilt (which is often referred to as "standing up" through impact). Brian Manzella also often refers to a near-impact (late phase 3) "pull-up" phenomenon as "going normal", which he seemingly signifies as being the biomechanical phenomenon of "pulling the grip end of the club straight up" directly away from the ball as one is reaching impact - with the direction of pull being perpendicular to the clubhead path arc.
Why is Brian Manzella offering this idiosyncratic advice? The only explanation that I have seen him offer is that the CF-loading of the club produces a CF force of 100lbs as it nears impact, and he believes that one must therefore produce an opposing force that is directed centrally (centripetally) to counteract that CF-loading force. I have never understood the rationale for this "pulling up with all ones' might" argument.
Now, consider this one-arm golfer, who only uses the right arm because his left arm was amputated.
Here are capture images form his end-backswing, mid-downswing and near impact.
How can he produce that "normal force" that is directed centrally in phase 3 of his downswing if he doesn't have a left upper limb attached to the golf club? How can he routinely hit 240-250 yards drives without generating that "normal force" because he cannot "pull up with his non-existent left arm/hand"?
Jeff.