Trunk rotation during the row
Body twists open as the elbow pulls back — losing the square hinge position.
Overactive muscles
Quadratus lumborumObliquesLatissimus dorsi (working side)
Corrective work
Foam RollQuadratus lumborum↗Foam RollLats↗StretchQL side-bend stretch↗StretchLat stretch (kneeling overhead)↗