Barbell Seated Overhead Triceps Extension exercise animation (Male)

Barbell Seated Overhead Triceps Extension

Target muscle
Triceps Brachii
Equipment
Barbell
Body part
Upper Arms
Type
Strength

The barbell seated overhead triceps extension is an isolation exercise that targets the triceps brachii, with the long head emphasized by the overhead arm position. Performed seated with a barbell lowered behind your head, it builds upper-arm size and lockout strength while the upright torso keeps tension on the triceps throughout the range.

How to do the Barbell Seated Overhead Triceps Extension

  1. 1Sit upright on a bench, ideally one with a back support, and brace your core with your feet planted firmly on the floor.
  2. 2Take a shoulder-width or slightly narrower overhand grip on the barbell and press it overhead until your arms are fully extended above your head.
  3. 3Keep your upper arms vertical and close to your head, with your elbows pointing forward rather than flaring out to the sides.
  4. 4Lower the bar in a controlled arc behind your head by bending only at the elbows, keeping your upper arms still.
  5. 5Continue until your forearms pass below parallel and you feel a stretch in your triceps, without letting the bar touch your neck.
  6. 6Extend your elbows to drive the bar back overhead until your arms are fully locked out, squeezing your triceps at the top.
  7. 7Repeat for your target reps, keeping the tempo controlled on both the lowering and lifting phases.
  8. 8To finish, lower the bar to your chest or shoulders under control and set it down safely, or hand it off to a spotter.

Form tips

  • Keep your elbows tucked in and pointing forward throughout the set so the tension stays on the triceps and off the shoulders.
  • Move only at the elbow joint and keep your upper arms fixed beside your head — let your forearms do the travel.
  • Use a back-supported seat and a braced core to avoid arching your lower back as the weight goes overhead.
  • Have a spotter stand behind you to help hand off and catch the bar, since it travels behind your head with heavy load.
  • Start lighter than you would on a pressing movement — the long lever overhead makes the triceps the limiting factor fast.

Common mistakes

  • Flaring the elbows out to the sides, which shifts work away from the triceps and stresses the shoulder joint.
  • Letting the upper arms drift and swing instead of staying fixed, which turns the lift into a press and loses triceps tension.
  • Lowering the bar too fast or too far and letting it strike the neck or head, a real injury risk with weight behind you.
  • Arching the lower back to push the weight up, which removes core stability and risks a back strain.
  • Going too heavy and cutting the range short, so the triceps never get the deep stretch that drives growth.

Frequently asked questions

What muscles does the barbell seated overhead triceps extension work?

It isolates the triceps brachii, the muscle on the back of your upper arm. The overhead position places extra emphasis on the long head of the triceps because it is stretched under load.

Why do this seated instead of standing?

Sitting, especially against a back support, stabilizes your torso and limits lower-back arching, so the triceps do the work without your body cheating the weight up.

Is the seated overhead triceps extension good for beginners?

Yes, once you can control the bar overhead. Start light to learn the path, keep your elbows in, and use a spotter to hand off and catch the bar safely behind your head.

How many sets and reps should I do?

As an isolation move, 3–4 sets of 8–15 reps works well. Use a weight you can control through a full range without flaring your elbows or arching your back.

Where should I feel this exercise?

You should feel it in the triceps along the back of your upper arms, with a stretch near the bottom and a strong contraction as you lock out overhead, not in your shoulders or lower back.

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