How many sets and reps of the two-arm overhead dumbbell triceps extension should you do when you are new to the exercise?

Three sets of 10 to 12 reps with a dumbbell you can lower under full control is a solid starting point. Add small jumps in weight only once you can keep the elbows tucked and pointed forward for every rep; if that breaks down, add a rep or two before adding load.

What can I do instead of the two-arm overhead dumbbell triceps extension if I don't have a heavy enough dumbbell?

A resistance band anchored at the floor or a cable rope pressed overhead deliver the same behind-the-head stretch and let you add resistance beyond what your heaviest dumbbell offers.

Who is the two-arm overhead dumbbell triceps extension good for?

It suits lifters chasing triceps size who want a heavier, two-hand version of overhead work without a cable station. It's a poor choice early in a session if your shoulders are still cold, since the overhead lockout asks a lot of shoulder mobility before it asks anything of the triceps.

Intermediate

Two-Arm Overhead Dumbbell Triceps Extension

Cupping one dumbbell overhead puts the long head under a deep stretch at the shoulder, making this a powerful mass builder for the back of the arm. It needs shoulder mobility and a braced trunk to stay safe. Use moderate loads and full range rather than heaving heavy weight.

Equipment: Dumbbell
Body part: Triceps
Type: Strength
Browse by muscle: Triceps Brachii Long Head
Browse by movement: Elbow Extension

How to do it

1
Sit or stand tall and hold one dumbbell vertically with both palms cupped under the top plate.
2
Press it straight overhead so your arms are locked out.
3
Keep your elbows pointing forward and close to your head.
4
Bend your elbows to lower the dumbbell behind your head under control.
5
Descend until you feel a firm stretch in the triceps.
6
Drive the weight back up to lockout by extending the elbows, then repeat.

Tips

Keep your elbows tucked in; letting them flare wastes tension and stresses the joint.
Brace your abs so your ribcage doesn't flare and your back doesn't arch.
Use a controlled tempo, a dumbbell behind the head is no place to bounce.

Variations

Common mistakes

The elbows splay out sideways as the dumbbell drops behind the head, turning a triceps move into a shoulder-stability drill.
Letting the top plate slip out of your cupped palms forces you to re-grip mid-set instead of controlling the descent.
Bouncing out of the bottom stretch to save the shoulders trades a joint-friendly rep for a hard yank on the elbows.
Once the arms feel tired, the range shortens and the dumbbell stops reaching the point where the triceps actually feel a stretch.

Frequently asked

How many sets and reps of the two-arm overhead dumbbell triceps extension should you do when you are new to the exercise?: Three sets of 10 to 12 reps with a dumbbell you can lower under full control is a solid starting point. Add small jumps in weight only once you can keep the elbows tucked and pointed forward for every rep; if that breaks down, add a rep or two before adding load.
What can I do instead of the two-arm overhead dumbbell triceps extension if I don't have a heavy enough dumbbell?: A resistance band anchored at the floor or a cable rope pressed overhead deliver the same behind-the-head stretch and let you add resistance beyond what your heaviest dumbbell offers.
Who is the two-arm overhead dumbbell triceps extension good for?: It suits lifters chasing triceps size who want a heavier, two-hand version of overhead work without a cable station. It's a poor choice early in a session if your shoulders are still cold, since the overhead lockout asks a lot of shoulder mobility before it asks anything of the triceps.

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