Cable Incline Triceps Extension
Lying back on an incline bench facing away from a high pulley, you extend a straight bar overhead until the elbows lock. The recline sets your upper arms roughly 25 degrees off horizontal and the cable pulls in a straight line behind you, so tension stays on through the stretch instead of vanishing where a free-weight extension goes slack.
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 the bench to about 45 degrees and drag it back until your head sits just past the pulley's line of pull.
- Attach a straight bar to the high pulley and take a pronated grip slightly narrower than your shoulders.
- Sit down with the bar already in your hands and then lie back, rather than reaching back for it under load.
- Settle the upper arms pointing up and back, roughly 25 degrees off horizontal, elbows tucked in toward your ears.
- Press your back flat into the pad so your ribs cannot flare when the cable starts pulling.
Every rep
Breathing & tempo — Exhale as you extend, inhale as the cable pulls you back. Two seconds down, one second up, one second held at lockout.
Sets, reps & load
Where to start, and what to change when it stops being hard.
Start light: 10-15 kg on the stack is plenty for most people, and your elbows will object long before the muscle does. Good looks like a locked elbow at the top and a completely stationary upper arm at the bottom on every rep. Add a plate only after you hit the top of your rep range twice in a row with no elbow drift.
What goes wrong
The errors that show up most often, and the cue that fixes each one.
Cut the stack by a third and watch your elbows for a full set. If they travel at all, the weight is above what your triceps can control at this arm angle.
Lower until you feel the stretch across the back of the upper arm, then reverse. Count a two-second descent so the range is decided by the clock rather than by fatigue.
Grip hard and keep the knuckles pointing back behind you so the bar sits over the forearm. If it still folds the wrist, swap to a rope or an EZ attachment.
This is single-joint work for a small muscle. Pick a weight you can control for 12 reps and progress by adding reps first, plates second.
Why bother
A free-weight skullcrusher loses tension every time the forearm passes through vertical. A cable pulls along its own line the whole way, so the resistance curve here is close to flat: hardest where the elbow is bent and the muscle is long, and still meaningful once the arms are locked.
The incline does more than make you comfortable. Reclining lifts the upper arms above the line of the torso, which lengthens the long head - the only one of the three that crosses the shoulder - before the elbow even starts to bend. That is the position a straight-armed pushdown never reaches.
Where it fits
After your pressing work on a push day, 3-4 sets of 10-15. It pairs badly with heavy skullcrushers in the same session, since both hammer the same lengthened position, and well with a pushdown, which loads the short end of the range instead.
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
How is this different from a lying cable extension?
The bench angle. Lying flat puts your upper arms perpendicular to your torso; reclining at 45 degrees pushes them back past your head, which lengthens the long head further and moves the hardest part of the rep deeper into the stretch. If you already run the flat version, this is a variation of it, not an addition to it.
Straight bar or rope?
Straight bar if your wrists and elbows are comfortable, because it lets you load more and stops one arm hiding behind the other. Rope if the fixed grip aggravates your elbows - the neutral hand position takes strain off the inside of the joint, at the cost of a little load.
Should I go heavy on triceps isolation?
No, and it usually backfires. When a small muscle gets an ambitious load, the elbow joint takes the difference. Keep isolation in the 10-15 range and let close-grip pressing supply the heavy triceps work.
Why do I feel this in my shoulders?
Either your upper arms are drifting back past the point your shoulders can hold, or the cable is pulling your ribcage off the pad. Move the bench forward a few centimetres, press your back into the pad and shorten the bottom of the range slightly.