Band Pull Apart
Also works: Middle Back · Traps
Holding a light band at arm's length and pulling it apart until it touches your chest. It is the cheapest rear-delt and mid-trap work there is, light enough to do daily, and it belongs in warm-ups and between-set filler far more than it belongs on a dedicated shoulder day.
Own the movement
Set up first, then execute. Every cue below is something you can check on your next set.
Before the first rep
- Pick a band you can complete 20 clean reps with, not one you can barely stretch. Most people start two sizes too heavy.
- Grip the band at shoulder width or slightly wider — narrower hands make it brutally hard with no extra benefit.
- Hold your arms straight out in front at shoulder height, band pulled just taut so there is tension before rep one.
- Stand tall with ribs down. If your lower back arches to help, the band is too strong.
Every rep
Breathing & tempo — Exhale as you pull apart, inhale on the return. One second out, one second held, two seconds back — the tempo is the whole exercise here.
Sets, reps & load
Where to start, and what to change when it stops being hard.
Start with the lightest band in the rack — a 5-10 kg resistance loop is plenty for most people. Progress by narrowing your grip on the same band, adding a one-second hold, or adding sets rather than jumping to the next band thickness. Good looks like 20 reps with a full pause and no trap shrug.
What goes wrong
The errors that show up most often, and the cue that fixes each one.
Set your shoulder blades down toward your back pockets before the first rep and keep them there. Drop to a lighter band until you can complete 20 reps without the shoulders climbing toward your ears.
Lock the elbow angle at the start and treat your arms as fixed levers. Film one set from the front: your hands should trace a flat arc, not travel back toward your ribs.
Choose a band where rep 20 is hard and rep 1 is easy. Progress by moving your hands closer together on the same band before buying a thicker one.
Count two seconds on the return. The eccentric under band tension is half the work and it is the half most people skip.
Why bother
A band gets harder the further you pull it, and that curve matches the rear delt perfectly: the muscle is weakest and least recruited at the fully-stretched front position and strongest at full horizontal abduction. Dumbbells do the opposite, unloading exactly where you want the squeeze.
The honest claim is modest. This will not build visible rear delts on its own at the loads a band provides, and it does not correct posture in any structural sense. What it does do is give the scapular retractors work at a volume you can repeat several times a day without any recovery cost, which is why it survives in programs where heavier rear-delt work does not.
Where it fits
Two or three sets of 15-25 in the warm-up before any pressing session, and again as filler between sets of bench. Daily is fine. If you are pressing heavy four days a week, this is the counterweight that costs you nothing.
If this one isn't it
No kit, too hard, or too easy — here's where to go instead.
Same job, different kit
Start here instead
Asked and answered
Can I do band pull-aparts every day?
Yes, and that is the best use of them. The load is low enough that recovery is not a factor, so 100-200 total reps spread across a day is realistic. Daily light volume for the rear delts and mid-traps is far more useful than one heavy weekly session that leaves you sore.
Will this fix my rounded shoulders?
No. Posture is mostly habit, thoracic mobility and how you spend your working day, not a weak muscle you can strengthen away. Pull-aparts give the retractors something to do and often make your shoulders feel better under a bar, but do not expect a structural change from a band.
How do I know which band to use?
If you cannot get 15 reps with the band touching your chest and a one-second pause, it is too heavy. Most people should be able to complete 20-25. The rear delts are small; treating a pull-apart like a heavy row defeats the point.
Is this better than a rear delt fly?
For daily volume, yes — the ascending band tension peaks where the fly unloads, and you can do it anywhere. For actually growing rear delts, no. Use pull-aparts as warm-up and filler, and a cable or bench-supported dumbbell fly when you want the muscle to grow.