One of the unique aspects of Moe’s golf swing is that is can save your back. There’s a biomechanical reason for this – mainly that his lead knee flexes into impact taking pressure from the lower spine.
Conventional golfers lower back move upward into impact causing compression. Moe’s lower back moves down reducing the stress.
At address, Moe’s tilt of the spine allows for the lower back to move slightly forward in the backswing rotation. This makes it easy to transition into the downswing into a flexed lead knee.
Notice the tilt at the address where these legs form a stabilized position I call an “A” frame.
To the top of his backswing, his lower spine moves slightly forward as he braces against his trail leg.
Immediately into the downswing, he braces into his lead knee. These stabilize the lead hip so that he can continue the torso rotation into the downswing.
Moe Norman’s swing stabilizes the lead hip by flexing rather than straightening the lead knee. These takes pressure off of the pelvis and back.
At impact, Moe has rotated his hips and torso with the lead knee flexed and trail foot on the ground. He has maximized his pelvis rotation.
Through impact into release, you can see the lead leg flex and stability as his trail knee moves down due to trail hip rotation.
Finally, you can still see the lead knee flexed into his completed finish.
Learn more about the biomechanics of Moe’s swing and see the video of his swing from the back view in the Moe Norman “Notebook.”
Here is the link.