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Understanding Wrist Graphs by Brian Manzella

Brian Manzella (Golf Digest Top50) explains how to read and interpret Hackmotion wrist graphs – flexion/extension, radial/ulnar deviation and rotation.
Please also explore the wrist data graphs below the video. Length of the video is 30 minutes.

Here are some notes from the presentation.

The terminology used:

  • Flexion (-)/Extension (+) (green line) = Bowing/Cupping of the lead wrist
  • Radial(+)/Ulnar (-) deviation (blue line) = Cocking/Uncocking of the lead wrist
  • Rotation (purple line) = Global Rotation relative to address, Closing club face (+) /Opening club face (-)

Extension(+)/Flexion(-)

Radial(+)/Ulnar(-) Deviation

Rotation Open(-)/Closed(+)

Tour Player Data from the Presentation

Here is data from a European Tour player (6iron) which Brian analyzes during his presentation. Pay your attention to the graphs rather than just the tile numbers at address, top and impact. It is the motion and not just the position that matters in the golf swing.

Below you can also see the tile numbers for flexion/extension, radial/ulnar deviation and rotation amount and speed.

Want to get started?

Step 1: Get HackMotion and start understanding how wrist flexion/extension influences the release.

Step 2: Learn from included Tour data

Step 3: Measure and improve to get the wrists exactly as needed for more controlled ball flight.

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The 3 tour wrist patterns

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