Hackmotion Player - Wrist Stability

The main goal of this practice mode is to learn not to be too wristy and eliminate unneeded wrist motion during the putting stroke to improve repeatability and consistency.

List

Extension, also called cupping of the wrist is a positive value. More lead wrist extension adds loft to the putter face.

Flexion, also called bowing of the wrist is a negative value. More lead wrist flexion removes loft from the putter face.

Wrist stability mode provides the following data
:

Max change in flexion/extension relative to address: This number is displayed on the left hand side of the screen (green color) . Players should avoid having too much change in the flexion/extension metric, since this will make it hard to control the loft.

Graph of flexion/extension: shows how flexion/extension changes relative to address. The moment or peak change is highlighted. The graph also contains a suggested range from -2 to +2 degrees relative to address which players can try to match.

Flexion/Extension is also important generator of speed. If you are struggling with controlling distance, then it might be caused by too much changes in flexion/extension.
 
Since putting grips are very different  from player to player we do not provide absolute values at address, top and impact. Instead the player should focus on maintaining address position values and avoiding excessive wrist motion.
Diagram of wrist extension and flexion

Radial deviation, also called cocking of the wrist is a positive value. More radial deviation moves the putter above the initial plane and can result in heel strikes.

Ulnar deviation also called uncocking of the wrist, is a negative value. More ulnar deviation moves the putter below the initial plane can result in toe strikes.

Wrist stability mode provides the following data
:

Max change in radial/ulnar deviation relative to address: This number is displayed on the left hand side of the screen (blue color) . Players should avoid having too much change in this metric since it will be hard to hit the center of the putter face if it is moving above and below the plane.

Graph of radial/ulnar deviation: shows how radial/ulnar changes (relative to address) and moment or peak change is highlighted. The graph also contains a suggested range from -2 to +2 degrees relative to address.

 

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