Seated Dumbbell Overhead Triceps Extension

Also known as: seated dumbbell french press

In SetGrip: Dumbbell Overhead Triceps Extension (Seated)

Secondary muscles
Delts
Body part
Upper Arms
Position
Seated
Laterality
Bilateral (both sides together)
Category
Strength

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Cupping one dumbbell in both hands overhead is the simplest way into seated triceps work: no bar to balance, a neutral grip, and a load you can hoist into position alone. Without a back pad your trunk still has to resist arching, which is the main thing separating this from the back-supported version on an upright bench.

How to do the Seated Dumbbell Overhead Triceps Extension

  1. Sit on a bench with your back straight and feet flat on the ground.
  2. Hold a dumbbell with both hands and extend your arms straight up above your head.
  3. Slowly lower the dumbbell behind your head, keeping your elbows close to your ears.
  4. Pause for a moment, then raise the dumbbell back up to the starting position.
  5. Repeat for the desired number of repetitions.

Tip: Keep a slight bend at the top on lying extensions to protect the elbow, but lock out fully on cable pushdowns.

Muscles worked

Primary

Triceps · Arms

The triceps straighten the elbow, and overhead variations stretch the long head at the bottom, so you should feel the whole back of the upper arm working with a hard squeeze at lockout.

Secondary

  • Delts — The front delt holds the upper arm in position on overhead extensions and should feel tension but not be lifting.

Common mistakes

  • Elbows flaring out — on overhead and lying extensions the elbows should stay pointed forward or up, not out to the sides, since flaring turns it into a press.
  • Upper arm moving — the upper arm should be pinned in place and only the forearm should move; if the elbow drifts, drop the weight.
  • Not finishing the rep — take every rep to a full triceps squeeze; on pushdowns that means a complete lockout for a count.
  • Cutting the stretch — on overhead extensions let the weight travel down behind the head until you feel the long head stretch before pressing up.

Where it fits in a workout

Triceps extensions go after the presses in a push session or at the end of an arm day. Superset them with biceps curls.

How many sets, how heavy and how hard: see what the ACSM position stands support.

Variations and alternatives

When to talk to someone

  • Chest discomfort, feeling faint or lightheaded, or trouble breathing during or after exercise can be signs of a heart attack. In the US, call 911 right away; elsewhere, call your local emergency number.
  • Heart, metabolic or kidney disease, or symptoms like these when you are active: talk to your doctor before you start or step up training.
  • Pregnant: ask your obstetric care provider which exercise suits you.

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More exercises

Sources

  1. ACSM position stand on exercise quantity and quality (Garber et al., 2011)
  2. ACSM preparticipation health screening (Riebe et al., 2015)
  3. ACOG Committee Opinion No. 804 on exercise in pregnancy (2020)
  4. CDC: About Heart Attack Symptoms, Risk, and Recovery (2024)

Sources checked on October 17, 2026. Full citations are in the exercise library.

Animation and exercise data: ExerciseDB, licensed to SetGrip. General information, not medical or coaching advice.