The One Plane Golf Swing

 

In the summer of 2005,  I saw an episode of Golf Academy Live on The Golf Channel  that featured instructor  Jim Hardy  and golfer Peter Jacobsen.   Jim Hardy was talking about the differences between the one plane and the two plane golf swing, based on his new book ,   “THE PLANE TRUTH FOR GOLFERS”.  I watched the TV show with great interest, and I found his book to be the best one I have ever read on the golf swing. 

Jim Hardy says that all golfers swing the club in one of two patterns.

In a one plane swing, the golfer bends more at the hips, and swings the club behind the body on the backswing , with the left arm parallel to the shoulders at the top of the backswing, and then rotates the body and shoulders to pull the club through impact and then back to the left.  In a two plane swing, the golfer stands more erect, and swings the club up, down, and up on a more upright swing plane.  Ben Hogan had a one plane swing,  like a “merry-go-round”, since the club went behind him, then out to the ball, and finally back to the left,  on a flatter swing plane.  Tom Watson has a two plane swing, like a “ferris wheel”, since the club is lifted up by the arms, then down to the ball, and then back up again, on a more upright swing plane.

Peter Jacobsen started his career as a two plane swinger, and then went to a one plane swing following Jim Hardy’s advice.  Peter won the US Senior Open, and  won the Senior Players Championship in July of 2005.  Tucson’s  Don Pooley  also recently switched from a two plane swing to a one plane swing after some lessons from Jim Hardy.

It is certainly  possible to play golf with either a two plane swing or a one plane swing.  However, problems occur when a golfer mixes the fundamentals of one type of swing with the fundamentals of  another type of swing.  For example, if you bend forward  at the hips like a one plane swinger, but swing your arms up in an upright swing path like a two plane swinger, your club will approach the ball on too steep of an angle, and you will  not hit the ball well.

In a one plane swing, the grip is slightly stronger (left hand turned more clockwise), compared with a one plane swing. The stance in a one plane swing is wider, and may be square or slightly closed. The posture is more bent over at the hips for a one plane swing, which means the ball will be a little further from the feet compared with the two plane swing. In a one plane swing, the spine is straight up and down  at address, unlike a tilt of the spine to the right which occurs at address in the two plane swing. It is very important to get enough bend at the hips at address in the one plane swing, so be sure to stick your rear end out and bend forward. Weight distribution at address is 50 % for each foot in the one plane swing. Weight distribution is 60% on the right foot and 40% on the left foot at address in the two plane swing.

During the early backswing, the club moves more inside and more behind the body in a one plane swing. The left arm remains close to the chest during the backswing in a one plane swing. In a two plane swing, the club moves on a more upright path in the backswing, and the arms stay “in front of the chest”. At the top of the backswing, the one plane swinger will have the left arm and club parallel to the shoulder plane, and the shoulder plane is more vertical. At the top of the backswing, the two plane swinger will have the left arm more upright, and the shoulder plane will be more horizontal. If you are a one plane swinger, be certain to keep your left shoulder low at the top of the backswing (pointing more toward the ground). The two plane swinger is allowed to have the left shoulder higher at the top of the backswing, since the arms will be swinging up and down and then up again to hit the ball. In the one plane swing, there is more clockwise rotation of the arm on the backswing. In the two plane swing, there is less clockwise rotation of the left arm on the backswing.  In the one plane swing during the backswing, you should  bring the arms and club more behind you with plenty of clockwise rotation of the left arm, keeping the left shoulder low, so that the left arm is very close to the shoulder plane at the top of the backswing.

The main source of power in the one plane swing is the rotation of the body, with the arms simply following.  Once you are at the top of the backswing in the one plane swing, you can quickly rotate the hips and shoulders back to the ball and then back to the left, with little hand manipulation.  The arms simply follow the rotation of the shoulders on the forward swing in the one plane swing.  The main source of power in the two plane swing is the arm swing, where tempo and timing is critical, as you try to synchronize the up and down and up movement of the arms with the turning of the body, with more hand action in the impact area. At impact in the one plane swing, the hips are 35 to 50 degrees open, and the shoulders are 20 to 30 degrees open.  At impact in the two plane swing, the hips and shoulders are square or slightly open.  After impact in the one plane swing, the hands and arms and club will move lower and more to the left than in the one plane swing. At the finish, the club in the one plane swing will be more horizontal, and the club in the two plane swing will be more vertical. In the one plane swing, the spine will be straighter in the finish positon, because of the simple rotation around the spine.  The spine might be in a slight “reverse C “ position in the two plane swing because of the slight lateral slide of the hips in the downswing.  In both swings, the spine is still tilted to the right as viewed from behind the golfer, looking down the target line.

 

Here is a comment on equipment that might be important to you.  If you are a two plane swinger and switch to a one plane swinger, it is possible that you may need to flatten the lie of your clubs. In the one plane swing, you are more bent forward at address, with hands lower. This brings the toe of the club up slightly. This may make the ball curve more to the left after you hit it. This is not always a problem, but your should be aware of it, especially if you notice that the toe of your club is quite a bit off the ground at address, and if the ball is curving to the left after you hit it.

 

I recommend that you buy a copy of  “The Plane Truth for Golfers” by Jim Hardy.  It is available at Jim’s  web site   

www.  Jimhardygolf.com ,  and at local book stores.  The book is paperback and costs around 19 dollars.

I also found a DVD at a web site,     www.  oneplanegolfswing. com   ,which features two instructors talking about the one plane swing.   The DVD is well done and easy to understand; it costs about 50 dollars.

A rebroadcast of the Jim Hardy Peter Jacobsen Golf Academy Live show is scheduled for Monday night, September 12, 2005 on The Golf Channel.

 

Is the one plane swing, or the two plane swing,  best for you?

 

 

Steven Vig  MD           joyandsteven  @ cox.net

Summer 2005