Speed Gain (Arm to Shaft) | VectorGOLF.ai

Speed Gain (Arm to Shaft)

Swing Analytics (Sportsbox-style positional metric).

What it measures

Player Plus ratio describing how peak arm kinematics feed shaft rotational kinematics—the final kinematic bridge before mph-based Release Factor summarizes club vs hands.

Units: ratio

Why it matters

Explains downstream shaft deg/sec viability before clubhead peaks realize.

When the number looks wrong or noisy

Thin gloves/occlusion perturb wrist segment locks.

Related metrics

Shaft Swing Speed Max, Lead Upper Arm Swing Speed Max, Release: hands to clubhead transfer

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