Lag Pressure

[ef425]

Lag pressure question. (excuse the rambling, I think there’s an interesting thought in here somewhere)

Does the maximum lag pressure = maximum club head speed? When I feel the most lag pressure, is that the time when my club is moving the fastest? I understand the idea that we want the club moving the fastest through impact but I’m not convinced that it happens at the same time I feel the most pressure in my hands.

When I throw a baseball, I know the ball is moving the fastest just when I let it go, but this is certainly not where I feel the most pressure in my throwing hand. I feel the most pressure in the transition from windup to pitch when I am overcoming the inertia of the ball.

Suppose I am pushing a heavy shopping cart from rest. I would feel the most pressure just as I start pushing because I need to get the cart moving but that can’t be when the cart is moving the fastest.

This graph makes sense in my head but I just can't for the life of me get that feeling in my swing.


Emmett

[starretj]

ef, I would think that the largest amount of pressure occurs when the differential between club head speed and hand speed is the greatest.

Jim S.

[imperfectgolfer]

My position is almost opposite to Jim's.

First of all, I believe that lag pressure is only "purely" felt by a swinger who uses drag-loading.

The greatest differential between hand speed and clubhead speed probably occurs at low point (when the clubshaft becomes straight in-line with the left arm). However, I think that's when lag pressure is at its lowest value - because the club is now fully released and traveling at its maximum speed. I think that lag pressure must be at its greatest value just before the start of the club's release, and I think that it progressively diminishes in magnitude throughout the remainder of the downswing. At impact, there is still a small of lag pressure felt at PP#3 (because the club has forward shaft lean), and it should disappear when the club becomes straight-in-line with the left arm (at low point).

The timing of the start of club release varies - and it can occur in the mid-downswing in a random release and in the late downswing in a snap release.

Jeff.

[johngrahamgolf]

Have to agree with Jeff on this one when it comes to when you would feel the most. I can't see how that chart can be accurate.

I'm not really sure about lag pressure to begin with. I can throw a club at the ball with forward shaft lean. In that case, I have zero lag pressure.

[starretj]

I should have been more clear in my description. I was thinking more at the end of backswing / beginning of downswing when the hands start accelerating in the opposite direction from the movement of the clubhead. The differential between the two would only lead to greater pressure when the hands are traveling faster than the clubhead like Jeff mentioned.

Jim S.