Is "Rolling" the Left Arm Advised?
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rwh
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In TGM, "Rolling" refers to the action of the hands rotating left (for a right handed player). The amount of roll is Hinging. Full Roll = Horizontal Hinging; Half Roll = Angled Hinging; Reverse Roll = Vertical Hinging. The muscles that rotate the hands/wrists are in the forearms. So, you cannot rotate the hands/wrists without also rotating the forearm.
Think of hinge as more of a 'fixed' in plane rotation of the entire unit (like a lighthouse light extending from your non rolling arm held out in front of you), and swivel as a 'roll' of the forearm (like using a screw driver with the left hand). The body/pivot is the light house, the arm the light.
A great image from "Keys to an Effortless Golf Swing"
The "entire Unit" is the Left Arm Flying Wedge (6-B-3-0-1), not just the Flat Left Wrist or the Clubface. And the "in plane rotation" is that of the Clubface about its pre-positioned Left Shoulder Axis (2-G), not of the Clubshaft (except in Angled Hinging).
This is very important. Think.
They are very close but different. Hinging occurs right after impact and ends just a few inches later. It is a fine tuning of the left hand. Important: hinging is NOT a swivel action. We can discuss hinging later if you like. The swivel occurs after the hinge action. It keeps the club on plane after impact which may seem silly on the face of it but the golf swing is a full concept, it doesn't stop at impact.
Yoda has a drill. Hold your hand alongside and in front of your left thigh, palm facing to the right. Move your right hand, slapping the left thumb as it goes by. This is the left hand feel of the swivel.
Its ALL IN THE HANDS. The Right hand pushes the clubHEAD, the Left hand fine tunes the hinge action on the clubFACE and the left hand after the hinge rolls to the left. EDUCATED HANDS.
It's very difficult to separate the Horizontal Hinging is a Swinging procedure from the left arm roll. How could Horzontal Hinging be done without left arm roll? How could the left arm be rolled through impact without doing Horizontal Hinging? With standard wrist action, the roll must begin before impact, even if the release of accumulators #2 and #3 is done sequentially. For overlapped release of #2 and #3, roll obviously happens well before impact.
Is there a typo above? "Hinging occurs right after impact" should that be "Swivel happens after impact" ? So this would be correct ? "Think of hinge as more of a 'fixed' in plane rotation of the entire unit (like a lighthouse light extending from your non rolling arm held out in front of you), and swivel as a 'roll' of the forearm (like using a screw driver with the left hand). The body/pivot is the light house, the arm the light."
Then, as I understand it:
The hinge is the assembly (from the shoulder to the clubhead) rotating ~90 degrees as the clubshaft goes from release to impact on the downswing. The right hand guides (or pushes - hitting) the clubhead downplane, the rotation of the left arm flying wedge/club is guided (or pulled - swinging) by the left hand. The forearm rolls after impact (the swivel), the thumb is no longer in line with the bicep. The left wrist would downcock at the same time as the hinging happens (driven by either the right hand(hit) or centrifugal force(swing). I lent my book to someone :-(, or I would try to figure it out from the book. I think it helps, though, to discuss it in different ways. I think different words and ways of describing it work for different people.
Then, as I understand it:
The hinge is the assembly (from the shoulder to the clubhead) rotating ~90 degrees as the clubshaft goes from release to impact on the downswing. The right hand guides (or pushes - hitting) the clubhead downplane, the rotation of the left arm flying wedge/club is guided (or pulled - swinging) by the left hand. The forearm rolls after impact (the swivel), the thumb is no longer in line with the bicep. The left wrist would downcock at the same time as the hinging happens (driven by either the right hand(hit) or centrifugal force(swing). I lent my book to someone :-(, or I would try to figure it out from the book. I think it helps, though, to discuss it in different ways. I think different words and ways of describing it work for different people.
Both Austin and Manzella would say "they should feel like they are always rolling" - in the same direction, from takeaway to finish, at least to a small degree
correct me if you disagree Brian - but this is what 'counter rotation' (Austin) and 'twist away' (Manzella) is all about.
The swinging force/physics will 'want' to cause the toe to rotate open going back, which means you must either provide a 'counter force' rotation going back, or very full rotation going through (Miller). Either way, you must address the fact that the design of the club (physics) causes the club to open going back.
My apologies AZ.
Hinge action is an angular motion on a Incline Plane and is aligned from impact fix to follow through. The hinge alignments are present through the whole swing.
My point was that the left hand controls the clubface. The Hinge IS the CLUBFACE. From impact to swivel the left hand fine tunes the hinge action. Swivel is the only real roll of the hand which allows the club to remain on plane to the end.
What does the left hand do in hitting? Nothing, built-in angled hinge. Swinging? At impact the vertical left hand turns and closes the blade like a door.
Hinge alignments, impact, hinge action, swivel, follow through, smile.
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