Swing Analytics (Sportsbox-style positional metric).
What it measures
SportsBox Head Thrust @ IMP—depth translator for the head centroid toward (+) or away (−) from Address at Impact.
Units: inches
Why it matters
Keeps cervical context inside IMP thrust bundles with pelvis + chest IMP rows.
When the number looks wrong or noisy
Rolling shutter exaggerates kinematic deltas—film with sports shutter presets.