If you want to talk about trap exercises for shoulders, the first thing worth knowing is how much muscle you are actually dealing with. Most people gesture at the ridge between neck and shoulder when asked to point to their trapezius, but that visible crest is only a fraction of the story. The traps form a large diamond of muscle fibre running from the sides of the neck, across the shoulders and down to roughly mid-back, covering around a third of the visible muscle on your back.
‘There’s actually a lot more mass to the traps than most people realise,’ says Luke Carlson, founder and CEO of Discover Strength. That size matters, and so does the muscle’s tendency to get skipped. Because the traps sit somewhere between shoulder day and back day in most training programmes, they often get left out of both.
Why Your Traps Deserve More Attention
Building the traps is not purely about aesthetics, though the visual payoff is real. Unlike most back muscles, the traps are visible whether you are in a T-shirt, a vest or even a dress shirt. But there is a functional argument that carries equal weight.
Carlson points to kyphosis, the forward curvature of the spine that most of us now know as tech neck. ‘The traps are what pull the head and the neck back,’ he says. ‘So, from a posture standpoint, it’s an awesome muscle to train.’ For anyone spending long hours crouched over a screen or a steering wheel, that is a genuinely useful adaptation.
The carry-over into other lifts is real too. Antony Brown, personal training leader at Life Time in Lake Zurich, Illinois, puts it plainly: ‘The traps really stabilise the shoulder joint. If we can better lock the shoulders back and down on the bench press, or keep them nice and stable while overhead pressing, that’s going to lead to a much stronger press because you’ve got a way stronger base.’
Three Trap Exercises for Shoulders Worth Adding to Your Programme
Shrug. The shrug targets the upper trap, the part most visible from the front. It is also one of the most accessible exercises in any lifter’s toolkit. You can use dumbbells, kettlebells, a barbell, a trap bar, or, if you are nowhere near a gym, loaded shopping bags or a rucksack heavy with books will do the job.
Stand tall with a weight in each hand, arms straight at your sides. Shrug your shoulders directly upward toward your ears, pausing at the top. Brown notes you can accentuate the contraction by ‘pulling your collarbones up towards your ears and slightly bending your elbows.’ Lower with control until you feel a stretch in the upper trap. That is one rep.
Carlson’s key warning here: ‘One of the biggest mistakes people make with the shrug in particular is they try to use too much weight, and so their shoulders don’t get as high as they theoretically could. Start with a lower weight and aim for as much range of motion as possible at the top of the movement.’
Scapula retraction. This one works the mid and lower fibres of the trap, which are largely responsible for shoulder stability and postural support. The set-up is identical to a seated cable row, but the movement is far smaller. Sit at the cable station with a narrow neutral-grip attachment, arms extended in front of you, and keep your elbows completely straight throughout. Rather than rowing the weight in, simply draw your shoulder blades together, pause, and release.
‘A great cue here would be, if you had someone’s finger in the middle of your back, touching your spine, could you pull your shoulders back and pinch their finger?’ says Carlson. The torso stays still throughout. If your trunk is not rocking forward and back, and only the shoulder blades are moving, you are on the right track.
Farmer’s carry. The third exercise uses a principle that a 2025 study review published in Sports Medicine and Health Science examined in detail: training a muscle in a lengthened, stretched position can increase growth. Brown applies this directly to the carry. ‘Just carrying heavy things with straight arms is going to build the traps, because they’re stretched and they’re loaded,’ he says. ‘If you look at a lot of powerlifters and strongmen, they all have huge traps, and that’s why.’
Pick up a pair of dumbbells or kettlebells, stand tall with arms hanging straight, and walk a controlled line for around 50 feet. Keep your chest up and your shoulders down throughout: ‘You want to try and keep your shoulders down and keep your chest up so that you’re getting that full stretch,’ Brown says. Set the weights down carefully at the end of the distance. That is one set.
These three movements cover the full sweep of the trapezius, from the visible upper crest to the deeper mid and lower fibres that keep your shoulders braced and your posture upright. Carlson’s prescription is straightforward: stop leaving the traps out of both shoulder day and back day, and start treating them as the substantial block of muscle they actually are.
