Kneeling Cable Triceps Extension
You kneel facing away from a high pulley with your head and the backs of your upper arms parked on a bench, then press a straight bar out until the arms lock parallel to the floor. Bracing the upper arms on the bench removes almost every way of cheating this movement.
Own the movement
Set up first, then execute. Every cue below is something you can check on your next set.
Before the first rep
- Set a flat bench sideways in front of a high pulley, roughly one arm's length out from the tower.
- Attach a straight bar and take a pronated grip about 15 cm apart, palms down.
- Kneel facing away from the machine, then lower your head and the backs of your upper arms onto the bench.
- Set the elbows so the upper arms point away from the pulley and the forearms point back towards it, elbows fully bent.
- Choose a starting weight light enough that you can reach that position without being dragged backwards off the bench.
Every rep
Breathing & tempo — Exhale as you press out, inhale as the forearms fold back. One second out, one second held at lockout, three seconds back.
Sets, reps & load
Where to start, and what to change when it stops being hard.
Start at roughly half what you use for a standing rope pushdown — the braced overhead position is far less forgiving. Good looks like locking out every rep with the upper arms flat on the bench and a controlled three-second return. Add a plate only once you hit the top of your rep range twice in a row with that quality intact.
What goes wrong
The errors that show up most often, and the cue that fixes each one.
Drop the stack by two plates and press the backs of the arms down into the bench for the whole set. When they cannot stay down, the set is finished.
Count three seconds on the return. The stretched half of this rep is the reason to do it in the first place — rushing it wastes the whole setup.
Shuffle back until the cable runs roughly in line with your forearms at the bottom. You should feel a steady pull backwards, not straight down.
Keep the hands about 15 cm apart. A wide grip lets the forearms twist out and hands the work to the outer head instead of the long head you came for.
Why bother
Standing overhead extensions leak: the shoulders drift, the ribs flare, and the lower back takes up the slack when the triceps run out. Resting the upper arms on the bench pins the shoulder joint in place, so the only thing that can move is the elbow. What you lift is what the triceps actually lifted.
The overhead position also matters. The long head of the triceps crosses the shoulder, so it is only fully lengthened when the arm is up beside your ear — and it stays lengthened here for the whole set. A cable keeps tension on it at lockout too, where a free weight would go slack.
Where it fits
Late in a pressing session, after benching or dips, 3-4 sets of 10-15. It is a poor first movement — the setup is fiddly and the position rewards precision over load. Run it for six to eight weeks as your overhead triceps work, then swap to a rope or dumbbell version to change the strength curve.
If this one isn't it
No kit, too hard, or too easy — here's where to go instead.
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Asked and answered
Why kneel instead of just standing?
Because standing lets you cheat. Overhead with a cable, the natural compensations are leaning forward, flaring the ribs and arching the lower back — all of which let a heavier stack move without the triceps doing more. Kneeling with the arms on a bench removes every one of them, which is why the weight you use will look small and feel enormous.
Is overhead triceps work actually necessary?
If you want the long head trained through its full length, yes. Pushdowns and pressing keep the arm at your side, where the long head is already shortened at the shoulder. One overhead movement per week alongside your pushdowns covers the gap, and this is one of the strictest versions of it.
My elbows ache in the stretched position. What should I change?
Shorten the range slightly — stop the return before the deepest bend — and drop the load. The overhead stretch under tension is the most demanding position for the elbow tendon of any triceps movement. If it still aches, use a rope pushdown for a few weeks and reintroduce this at half the weight.
Straight bar or rope?
The straight bar keeps both arms honest and is easier to load precisely. A rope lets the hands separate at lockout, which some people find kinder on the wrists and elbows. Start with the bar; switch to the rope if your wrists complain about the fixed pronated grip.