Dumbbell Seated Alternate Overhead Triceps Extension exercise animation (Hombre)

Dumbbell Seated Alternate Overhead Triceps Extension

Músculo objetivo
—
Equipamiento
Dumbbell
Parte del cuerpo
Upper Arms
Tipo
Strength

The dumbbell seated alternate overhead triceps extension is an isolation exercise for the upper arms, targeting the triceps — especially the long head, which is stretched and loaded in the overhead position. Working one arm at a time from a seated position keeps your torso supported and lets you focus on a full, controlled range of motion on each side.

Cómo hacer el Dumbbell Seated Alternate Overhead Triceps Extension

  1. 1Sit upright on a bench with your back supported and your feet flat on the floor.
  2. 2Hold a dumbbell in each hand and press both up to lockout, arms fully extended overhead with palms facing in.
  3. 3Keep your upper arms vertical and close to your head, with your elbows pointing forward.
  4. 4Lower one dumbbell behind your head by bending that elbow, keeping the upper arm still while the other arm stays locked out.
  5. 5Lower until you feel a stretch in the triceps, keeping your wrist neutral and your elbow from flaring out.
  6. 6Extend that arm back to full lockout overhead, squeezing the triceps at the top.
  7. 7Repeat with the other arm, alternating sides for the full set.
  8. 8Once finished, lower the dumbbells under control to your shoulders, then to your thighs to set them down safely.

Consejos de técnica

  • Keep your upper arms stationary and pointing toward the ceiling so the movement happens only at the elbow.
  • Brace your core and avoid arching your lower back as the dumbbell travels behind your head.
  • Control the lowering phase — take 2–3 seconds down to load the triceps stretch rather than dropping the weight.
  • Use a weight light enough that you can keep the resting arm fully locked out while the working arm moves.

Errores comunes

  • Letting the elbows flare out to the sides, which shifts tension off the triceps and stresses the elbow joint.
  • Dropping the upper arm forward as you lower, which turns the move into a partial press and shortens the range of motion.
  • Arching the lower back to help push the weight up, which removes tension from the triceps and risks back strain.
  • Using a weight so heavy that both arms move at once instead of truly alternating, defeating the point of the exercise.

Preguntas frecuentes

What muscles does the dumbbell seated alternate overhead triceps extension work?

It isolates the triceps on the back of the upper arm, with the overhead position placing extra emphasis on the long head of the triceps.

Why do it one arm at a time?

Alternating lets you focus on each triceps individually, even out side-to-side strength differences, and use a fuller range of motion than pressing both dumbbells together.

How many sets and reps should I do?

For arm size and strength, 3–4 sets of 10–15 reps per arm with a controlled tempo works well, since this is an isolation movement that responds best to moderate loads.

Where should I feel this exercise?

You should feel it in the triceps at the back of your upper arm, with a noticeable stretch when the dumbbell is lowered behind your head and a squeeze at lockout.

Is this a good exercise for beginners?

Yes. The seated, supported position and single-arm focus make it easy to learn — start light to groove the elbow path before adding weight.

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