
Standing with a rope from a low pulley held overhead, you let your hands travel behind your head and then extend back up. Arms overhead put the long head of the triceps under a stretch no pushdown can reach, and the cable keeps pulling at the bottom of that stretch instead of going slack the way a dumbbell does.
Set up first, then execute. Every cue below is something you can check on your next set.
Breathing & tempo — Inhale as the rope lowers behind your head, exhale as you extend. Three seconds down so you own the stretch, one second up, no pause at the bottom.
Where to start, and what to change when it stops being hard.
Start at roughly half your rope pushdown weight, often 10-20 kg on the stack, because overhead is a much weaker position than arms-at-your-sides. Good looks like a full stretch at the bottom with the elbows still pointing forward. Add weight after you hit the top of your rep range twice with the ribs staying down; otherwise add reps.
The errors that show up most often, and the cue that fixes each one.
Squeeze your glutes and pull the ribs down before pressing the rope up. If the arch comes back, it is shoulder mobility rather than core strength - use the kneeling version or lie back on an incline bench so the torso is supported.
Keep the upper arms beside your ears with elbows pointing forward, and cut the stack until they stay there. Flared elbows shorten the lever and take the long head out of the movement.
Take an extra half step forward until the cable is under tension with your arms locked. Tension at the top is half the reason to run this on a cable rather than a dumbbell.
Lock the feet, brace hard, and use a weight you can extend with no leg drive at all. If your knees dip on the way up, your body is lifting it and your triceps are along for the ride.
The long head is the only one of the three triceps heads that crosses the shoulder, so it is only fully lengthened when your upper arm is beside your ear. That makes overhead extensions the one triceps movement that trains the muscle at length, and length is where most of the growth stimulus sits.
The rope matters less than the arm angle, but it earns its place. It lets your hands separate as you lock out, which is the only way to keep the forearms in line with the cable at full extension, and it keeps the wrists neutral at the deep end of the stretch where a straight bar twists them.
Run one overhead extension and one pushdown each week and the triceps is covered at both ends of its range. Put this after your pressing, 3-4 sets of 10-15. Avoid stacking it straight after heavy overhead pressing - the shoulders will give out well before the triceps do.
No kit, too hard, or too easy — here's where to go instead.
For the long head, yes, because this is the only version that loads the muscle at length. For total triceps development they are complements rather than rivals: the pushdown loads the short end where you are strong, the overhead extension loads the stretch where the growth stimulus is highest. Run one of each every week.
Rope. It lets the hands spread at lockout and keeps the wrists neutral through the deep stretch, both of which a straight bar fights. A bar is only worth it when the rope is too short to let you reach a genuine overhead position.
Because the long head is already stretched across the shoulder before the elbow does anything, so it starts the rep well past the part of its length where it produces the most force. You also lose the bodyweight you lean into on a pushdown - here the cable is pulling you backwards instead. Half your rope pushdown weight is normal and is not a sign anything is wrong; judge progress against your own last session on this movement, not against the pushdown.
Usually too much load in the deep stretch, which is where the joint has the least to spare. Cut the weight by a third, shorten the bottom of the range by a few centimetres and slow the descent down. If it persists across sessions, park the standing version for a few weeks and run pushdowns instead.