The tricep pushdown is the simplest way to build the triceps directly — a cable elbow-extension that isolates all three heads with constant tension and an easy learning curve. Here's how to do it with good form, the muscles it works, the mistakes to avoid, and how to program it.
The tricep pushdown is an isolation exercise that works the triceps brachii — the muscle on the back of the upper arm that extends the elbow. You stand at a high cable with your elbows pinned to your sides, then press a bar or rope down until your arms lock out, and return under control. Because the cable keeps constant tension and the movement isolates one joint, it's a beginner-friendly way to add direct triceps volume on top of your pressing.
The tricep pushdown is an isolation lift, so the triceps do nearly all of the work across all three heads, with the forearms and shoulders assisting only to keep the upper arms stable.
| Role | Muscles | What they do in the lift |
|---|---|---|
| Primary mover | Triceps brachii | Extend the elbow to press the attachment down |
| Assisting | Anconeus | Helps finish the elbow extension at lockout |
| Stabilizers | Shoulders, lats | Keep the upper arms pinned to the sides |
| Stabilizers | Forearms, core | Hold the grip and keep the torso steady |
Step-by-step form for the cable tricep pushdown. Keep the upper arms still and let only the forearms move.
If you want to train elbow extension with a different tool or angle, these are the common swaps:
The tricep pushdown is an accessory, usually placed at the end of a push or arm day after your main pressing. General starting points:
| Goal | Sets × reps | Notes |
|---|---|---|
| Muscle size | 3–4 × 10–15 | Moderate load, full lockout and a squeeze, close to failure on the last set |
| Higher volume / pump | 3–4 × 12–20 | Lighter load, controlled tempo, minimal rest for a strong finisher |
| Frequency | 1–3× / week | Recovers quickly; progress by adding a rep, then a little weight |
Pushdowns pair naturally with pressing on the push days of a Push Pull Legs split. Read up on RPE to gauge how hard each set should feel — for an isolation move like this, training close to failure is usually safe.
Log every pushdown set — weight, reps, and an RPE value — in LiftHero, and it charts your progressive overload and flags personal records so you can watch your triceps volume and strength build over the weeks. You can add warm-up sets, supersets and rest-timer holds, then drop the pushdown into a saved routine so it's ready the next time you train. LiftHero records what you log; it doesn't diagnose your form.
It works all three heads of the triceps brachii — the long, lateral and medial heads — which extend the elbow. The forearms and shoulders assist slightly to keep the upper arms stable.
Both work. A straight or angled bar lets you load a bit more weight with a fixed grip; a rope lets you spread the ends at the bottom for a stronger squeeze and a more natural wrist position. Many lifters alternate.
Usually your upper arms are moving or you're leaning into the weight with your chest. Pin your elbows to your sides, keep the upper arms still, and let only the forearms move. Lighter weight often fixes it.
Use a weight you can press to a full lockout with the elbows pinned and no torso heave. Moderate loads with clean form and a squeeze at the bottom beat going as heavy as possible.
Moderate to higher reps suit this isolation move. Most lifters do about 3–4 sets of 10–15 reps, training close to failure since the light load makes it low-risk.
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This guide is educational and not medical advice. Consult a qualified coach or medical professional before starting or changing a training program.
By Meitar Lazimi, founder of LiftHero · Last updated July 9, 2026.