Dumbbell Lying Triceps Extension exercise animation (Hombre)

Dumbbell Lying Triceps Extension

Músculo objetivo
Triceps Brachii
Equipamiento
Dumbbell
Parte del cuerpo
Upper Arms
Tipo
Strength

The dumbbell lying triceps extension is an isolation exercise that targets the triceps brachii, the muscle on the back of your upper arm. Performed lying on a flat bench, it isolates elbow extension to build arm size and pressing strength, and works well as an accessory to heavier pressing movements.

Cómo hacer el Dumbbell Lying Triceps Extension

  1. 1Lie flat on a bench holding a dumbbell in each hand, feet planted firmly on the floor.
  2. 2Press the dumbbells up until your arms are extended straight over your chest with your palms facing each other.
  3. 3Tuck your upper arms so they point toward the ceiling and keep them fixed there throughout the set.
  4. 4Bend at the elbows to lower the dumbbells under control toward the sides of your head, keeping your upper arms still.
  5. 5Lower until you feel a stretch in the triceps without letting your elbows flare wide.
  6. 6Drive through the back of your arms to extend your elbows and press the dumbbells back to the start.
  7. 7Squeeze your triceps briefly at the top, keeping a soft lockout to maintain tension.
  8. 8Complete your reps, then lower the dumbbells safely to your chest and sit up with control.

Consejos de técnica

  • Keep your upper arms vertical and motionless — only the forearms should move, so the triceps do all the work.
  • Lower the dumbbells slowly (around a 2–3 second negative) to maximize the stretch and tension on the triceps.
  • Pick the dumbbells up from your knees and lower them back the same way to protect your shoulders when getting in and out of position.
  • Use a weight you can fully control, since the elbows are vulnerable when loaded at full stretch.

Errores comunes

  • Letting your upper arms drift back or forward, which turns the move into a press and takes tension off the triceps.
  • Flaring the elbows out wide, which stresses the elbow joint and reduces the stretch on the triceps.
  • Using momentum to swing the dumbbells up instead of extending the elbows under control, which cheats the rep and risks the elbows.
  • Lowering the weight too far or too fast, which can overstretch and strain the elbow.
  • Locking the elbows out hard at the top, which dumps tension off the muscle and stresses the joint.

Preguntas frecuentes

What muscles does the dumbbell lying triceps extension work?

It isolates the triceps brachii, the large muscle on the back of the upper arm responsible for straightening the elbow.

Why use dumbbells instead of a barbell for lying triceps extensions?

Dumbbells let each arm work independently and let your palms face each other, which can be easier on the wrists and elbows and helps even out strength differences between sides.

Is the dumbbell lying triceps extension good for beginners?

Yes. Start light and focus on keeping the upper arms fixed and the elbows tracking properly. The lying position is stable and lets you isolate the triceps with good control.

How many sets and reps should I do?

For arm growth, 3–4 sets of 10–15 reps with a controlled tempo works well. Since this is an isolation move, moderate weight with strict form beats going heavy.

Should I lower the dumbbells to my head or behind it?

Lower them toward the sides of your head or just past your forehead, going only as far as a comfortable triceps stretch allows. Avoid forcing them deep behind your head, which strains the shoulders and elbows.

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