How does shoulder blade glide?

   Chuck, Al,
Study Chuck & TW's backswing, I see TW's spine is square on shoulder rotating plane and Chuck's is not. That means Chuck rotate the shoulder a little bit flatter relatively.
So my confuse for my takeaway is how much my shoulder blade glide along the spine. I think it is almost gliding toward spine and very less down along the spine but I need to quantity this movement. Help me!
Sonadt

Author	Message Share Topic Printable Version Delicious Digg Facebook Furl Google MySpace Newsvine reddit StumbleUpon Translate Twitter Windows Live Yahoo Bookmarks Topic Search Topic Options Post Reply Create New Topic	Golf Instruction Bible! New!! Rotary Swing Golf Instruction DVD Rotary Swing Short Game DVD - Master the Short Game like Tiger Woods!
sonadt Members Profile Send Private Message Find Members Posts Add to Buddy List Certified Instructor Joined: 25 December 2009 Online Status: Offline Posts: 162	Post Options Post Reply Quote sonadt Report Post Quote Reply Topic: How does shoulder blade glide? Posted: 02 February 2010 at 10:11pm
	Chuck, Al, Study Chuck & TW's backswing, I see TW's spine is square on shoulder rotating plane and Chuck's is not. That means Chuck rotate the shoulder a little bit flatter relatively. So my confuse for my takeaway is how much my shoulder blade glide along the spine. I think it is almost gliding toward spine and very less down along the spine but I need to quantity this movement. Help me! Sonadt
	I'm Lefty...

Chuck Quinton Members Profile Send Private Message Find Members Posts Visit Members Homepage Add to Buddy List Rotary Swing Instructor RotarySwing.com Founder Joined: 11 February 2005 Location: United States Online Status: Offline Posts: 6663	Post Options Post Reply Quote Chuck Quinton Report Post Quote Reply Posted: 03 February 2010 at 8:54am
	My shoulders had started to rotate a little flat, overdoing the "down" part, they should rotate perpendicular.
	Current USGA Handicap +3 Player Rating = 91.1 Biomechanics of the Golf Swing

rufdiggity Members Profile Send Private Message Find Members Posts Add to Buddy List Members Vault Member Joined: 03 June 2009 Location: United States Online Status: Offline Posts: 192	Post Options Post Reply Quote rufdiggity Report Post Quote Reply Posted: 03 February 2010 at 11:37am
	Is it perpendicular to the spine angle?
	Milwaukee, WI USGA Index 9.2

sonadt Members Profile Send Private Message Find Members Posts Add to Buddy List Certified Instructor Joined: 25 December 2009 Online Status: Offline Posts: 162	Post Options Post Reply Quote sonadt Report Post Quote Reply Posted: 03 February 2010 at 12:18pm
	But it is difficult to control the gliding because lat muscle is not connect to scapula directly. It connects humerus and spine, so now blade gliding is only "my feel" and I do not control its movement correctly each time I begin to swing a club. Help me, Sonadt
	I'm Lefty...

Chuck Quinton Members Profile Send Private Message Find Members Posts Visit Members Homepage Add to Buddy List Rotary Swing Instructor RotarySwing.com Founder Joined: 11 February 2005 Location: United States Online Status: Offline Posts: 6663	Post Options Post Reply Quote Chuck Quinton Report Post Quote Reply Posted: 04 February 2010 at 9:41am
	sonadt, the lat muscle is focused on because most golfers can feel it, it has nothing to do with the motion. The lower trap and the rhomboid do the movement.
	Current USGA Handicap +3 Player Rating = 91.1 Biomechanics of the Golf Swing

sonadt Members Profile Send Private Message Find Members Posts Add to Buddy List Certified Instructor Joined: 25 December 2009 Online Status: Offline Posts: 162	Post Options Post Reply Quote sonadt Report Post Quote Reply Posted: 04 February 2010 at 1:26pm
	The middle fibers will pull scapula toward spin mainly (toward vertebrae C7, T1-3). From http://www.exrx.net/Muscles/TrapeziusMiddle.html. Others like rhomboid, lower trap, upper trap, levator scapulae, latissimus dorsi... are minorily applied to horizontal moving (perpendicular movement to the spine) of shoulder blade. That's what I've learned today. So I think now I have to educate the trap muscle, especially middle fibers, instead of latissimus dorsi muscle . How can I get it engaged properly and correctly?
	I'm Lefty...

Matt1960 Members Profile Send Private Message Find Members Posts Add to Buddy List Members Vault Member Joined: 28 December 2008 Location: United Kingdom Online Status: Offline Posts: 647	Post Options Post Reply Quote Matt1960 Report Post Quote Reply Posted: 04 February 2010 at 2:16pm
	This is where I think this whole muscle engagement thing gets complicated for me. I fully understand that certain muscles perform certain actions. But would it not be easier to think of the structures (bones) moving a particular way, that will automatically engage the relevant muscles, rather than the particular muscles. Matt

Al Consoli Members Profile Send Private Message Find Members Posts Add to Buddy List Rotary Swing Instructor Rotary Swing Instructor Joined: 13 April 2009 Online Status: Offline Posts: 448	Post Options Post Reply Quote Al Consoli Report Post Quote Reply Posted: 04 February 2010 at 4:56pm
	sonadt, you can get engaged properly by the following: 1. stand upright in military posture, head up, eyes forward 2. shrug your shoulders up to your ears and you will feel your traps engage 3. depress your shoulders and you will feel the lats engage You can now go about getting into a proper setup and have your core muscles engaged.

Al Consoli Members Profile Send Private Message Find Members Posts Add to Buddy List Rotary Swing Instructor Rotary Swing Instructor Joined: 13 April 2009 Online Status: Offline Posts: 448	Post Options Post Reply Quote Al Consoli Report Post Quote Reply Posted: 04 February 2010 at 5:00pm
	Matt1960, I believe that if I told my students to move their right scapula toward their spine without specifying the particular muscles, the movement would be misinterpreted. The student could perform the move in a number of ways and without the proper focus on the necessary muscle to initiate the movement.

sonadt Members Profile Send Private Message Find Members Posts Add to Buddy List Certified Instructor Joined: 25 December 2009 Online Status: Offline Posts: 162	Post Options Post Reply Quote sonadt Report Post Quote Reply Posted: 04 February 2010 at 9:37pm
	Al, Now I do it OK, but because it is not easy for me to rotate the shoulder perpendicularly to the bone axis. That the reason I started to study body anatomy and found that the right guy to help the shoulder blade to move toward the spine is middle fibers of trapezius muscle. Early this morning I start to do the slow motion: - Glide the blade toward the spine perpendicular at the beginning, but not much because the shoulder girdle will be retracted. - Rotate the body with obliques to 45* (internal left and external right help you to turn body left for lefty, hip doesn't move). Almost no arm/shoulder movement, so latissimus dorsi is just ready, not work. - In arm flexion, humerus will move over shoulder joint so lat muscle will work this time to keep the left arm to the top of backswing. Al, correct me if something wrong. Sonadt Edited by sonadt - 07 February 2010 at 8:45am
	I'm Lefty...