I have read about overactive upper traps that make people shrug rather than retract or depress their scapula.
Would static stretching the upper traps before a back workout help to deactivate or make them less active before a work out?
foam roll. or a ball. against the wall.
also neural recruitment.
you should be able to flex your arm and raise it up over your head with minimal trap firing. you can test yourself by using your non flexing arm to poke your other arm in the traps while you do the movement. tell it to relax. it will fire a little - don’t obsess. but you should be able to tell it to relax…