Bell tilts away from vertical
Shoulder loses external rotation; pec and lat pull the bell off stack.
Overactive muscles
Pec majorLatissimus dorsi
Corrective work
Foam RollPectorals↗Foam RollLats↗StretchDoorway pec stretch↗Shoulder loses external rotation; pec and lat pull the bell off stack.
Glutes fail to fully extend the hip in the bridge position.