Shoulders roll forward during the squeeze
Pec minor and anterior delt dominate rather than the sternal pec head.
Overactive muscles
Pec minorAnterior deltoid
Corrective work
Foam RollPectorals↗Foam RollThoracic spine↗StretchDoorway pec stretch↗Pec minor and anterior delt dominate rather than the sternal pec head.
Biceps assist; reduces the isolated pec contraction.