Shoulders protract off the pad
Scapulae lose retraction; anterior shoulder and pec minor load.
Overactive muscles
Pec minorAnterior deltoid
Corrective work
Foam RollPectorals↗Foam RollThoracic spine↗StretchDoorway pec stretch↗Scapulae lose retraction; anterior shoulder and pec minor load.
Elbows flare; chest press becomes a shoulder press pattern.