K-Vest | 3D Swing Technology


I can still hit (some) drives over 300 yards and I hit my 8-iron 150 yards. That’s pretty good power! Guess how surprised I was when the results of my Swing Efficiency Evaluation with K-Vest revealed my golf swing is inefficient! I realized through K-Vest, that I can generate even more power with some changes to my body mechanics!!! Guess how exciting that news was!!! I have learned things (through K-Vest) that I never knew before about my swing!! The greatest revelation has been inconsistency and power loss due to the improper use of my hips and upper body bend.

Despite many lessons and video analysis, I never knew this!!

I have been working with the K-Vest to continue to improve my swing. K-Vest is interactive. You work with the machine and you actually feel the proper body positions you should achieve to improve swing efficiency!

The result…my accuracy and distance has improved immensely!!!

My swing feels so much better because I no longer get into the bad positions I used to.



Kinematic Sequence graph (left) is an output of the KVEST analysis. The dotted red line represents the pelvis (hips), the green solid line represents the torso (upper body) and the blue solid line represents the hands. The left-most black vertical line represents the position at address, the center black vertical line represents the top of the swing, and the right-most vertical line represents impact.

Under the horizontal line represents moving away from the target, above the horizontal line represents moving towards the target. The higher the lines go, the faster they are moving towards the target. The optimal kinematic sequence (as reflected in the inserted “Efficient Example” would show movement away from the target in the following order: hands (blue), torso (green), hips (dotted red).

As the efficient swing approaches the top of the swing (where the hands transition from away from the target to towards the target) we see the pelvis starts moving towards the target as the hands and torso are still moving away (we see the red line cross over the horizontal line first), we then see the torso start moving towards the target while the hands are still moving away, finally the hands start moving towards the target (at the “top of the swing” vertical line.) Next we should see the pelvis accelerating, followed by the torso accelerating, followed by the hands accelerating. (Just as your hand accelerates and decelerates when cracking a whip. Decelerating to pass all acceleration energy to the whip) (Power is created from the ground up.) The pelvis accelerates/decelerates, passing energy to the upper body. The upper body accelerates/decelerates, passing energy to the hands. The hands accelerate/decelerate, passing energy to the golf club. In the example at left, the swing is inefficient because there is very little separation between the pelvis and torso.

If the hips open sooner (as the torso and hands are still moving away, we would create more “X-Factor stretch.” Instead, we see the hips and torso, transitioning towards the target together and just before the hands. Also, the pelvis should accelerate/decelerate before the torso accelerates/decelerates. Here we see the pelvis and torso moving together instead of independently. This could be caused by physical limitations that restrict the torso and hips from working independently from one another. This could be diagnosed through a TPI Screening.

You can book a lesson with me at Shoreline Golf Links in Mountain View, CA and access my lesson schedule by registering at “Smarter Lessons” here.