Left Wrist & Clubface Control - i'm confused....

i'm not sure, its not something i thought about, but i am going to take a guess. The bow and cupping of the wrist don't cause as much open and face closing as the forearms but they do. grip the club with your left hand, take your stance, and then keeping your left arm still (hold it with the right hand if you can't), just cup and bow the wrist. You see that the clubface moves laterally down the line, not around the body. Now for regards to open and closing a clubface, think of this on the golf plane, that moves around your body. If you at impact, you add loft, but you also change the impact position along the arc, meaning the clubface relative to your swing path will now be open compared to if you didn't. If you bow your left wrist, you change your impact position, and the clubface will be closed. 

 

So really its just something you have to be concious about in the swing. I believe i heard announces say Dustin Johnson, who bows his left wrist, has to hold off rotating the clubface through because if he does he will duck hook the ball. 

Well wouldn't that be relative if the person is on plane or not? What if that person has a very upright swing, then bowing of the wrist would put them on plane? 

 

Honestly i don't think it matters, all that matters is a flat left wrist at impact. There's probably players who can go from a bowed left wrist to an over the top move and hit a slice. I honestly think its much like the grip, if the position is causing you a problem, then fix it, if not then its not really that important in the long term. 

This is a very confounding issue that I have been trying to figure out for some time. What I have come to believe is that the least amount of hand involvement in the golf swing the better. If you are moving your wrists during the back swing than you are adding another variable to correct for during your downswing. My only positive knowledge regarding supernation/flexion in the golf swing is at impact. It results in solid contact.

You will have wrist movement no matter what, don't turn this thread into another, "Keep the face square to the path" crap. It doesn't happen, you can't make a full swing doing it, the clubhead will rotate 90 degrees from its set up position at address. The problem people have is, if they rotate there forearms and get the clubhead behind the ball. You can get the required forearm rotation and keep the clubhead on plane. Pro's do it. 

 

The face angle will generally just match the alignment of the left hand.  So more dorsi the toe will "hang" down and more palmar the face will aim more towards the sky.  You also mention dorsi flexion adding loft, be careful not to get into the mind set that to hit it higher you would need dorsi flexion at impact, that's what high handicappers do and tend to have the face aimed left, they also hit it lower than good golfer.  Best players tend to have a flat left wrist, handle forward, hit the ball high.

 

I see what you're asking now.  Open or closed is in reference to a few things.  There are various ways instructors define it, some think "toe up" on the back swing is a square club face.  Some draw plane lines and want the leading edge of the clubface to be parallel to certain ones at certain positions.  Here's how we would define it. At A2, left pic, when the leading edge of the club face is roughly parallel to the golfer's inclination, the club face is square to the plane, if it were "toe up" it would be open.  At the top of the back swing, right pic when the leading edge roughly matches the left arm, the face is square.  So Dustin Johnson's face isn't parallel to his left arm, so it would generally be seen as "closed".

 

Great Topic

Have you ever read the Life Magazine article where he tells his secret

He explains how he rolls his wrists back and through impact. It is a theory he learned from Scottish pros that cam to america but had been abandoned long ago due the perception of out of style.

It is explained in a book by David Hunter called Golf Simplified written in 1921

I was amazed at his connections as son of the Prestwick pro who took over after Old Tom Morris retired

Thank you