Dumbbell Lying One Arm Press (version 2) exercise animation (Männlich)

Dumbbell Lying One Arm Press (version 2)

Synergistenmuskeln
Deltoid Anterior, Triceps Brachii
Equipment
Dumbbell
Körperregion
Chest
Typ
Strength

The dumbbell lying one arm press is a unilateral chest exercise that works one side at a time while lying on a bench or the floor. It primarily targets the chest (pectoralis major, both the upper clavicular and lower sternal fibers), with the front deltoids and triceps assisting. Pressing with a single dumbbell forces your core to resist rotation, building pressing strength and left-right balance.

Dumbbell Lying One Arm Press (version 2): So führst du sie aus

  1. 1Lie flat on a bench or the floor and hold a single dumbbell at chest level in one hand, palm facing toward your feet.
  2. 2Plant your feet firmly and pull both shoulder blades down and together against the surface to set a stable base.
  3. 3Brace your core hard to stop your torso from twisting toward the loaded side.
  4. 4Press the dumbbell straight up over your chest until your arm is fully extended, keeping your wrist stacked over your elbow.
  5. 5Pause briefly at the top with the dumbbell balanced directly above your shoulder.
  6. 6Lower the dumbbell under control toward the side of your chest, keeping your elbow at roughly a 45–75° angle to your torso.
  7. 7Stop when your upper arm is about level with your chest, feeling a stretch across the pec.
  8. 8Complete all reps on one side, then switch the dumbbell to the other hand and repeat.

Technik-Tipps

  • Keep your free hand resting on your torso or the floor to help anchor your body and check that you are not rotating.
  • Brace your core and squeeze your glutes throughout the set so the lone weight does not pull your hips or shoulders out of line.
  • Press the dumbbell in a slight arc back over your shoulder rather than straight toward your face to keep the chest loaded.
  • Start lighter than your two-arm working weight, since balancing and stabilizing a single dumbbell is harder than it looks.

Häufige Fehler

  • Letting your torso twist toward the working arm, which shifts load off the chest and strains the lower back.
  • Lowering the dumbbell too fast or too deep, which stresses the shoulder joint and front delt instead of loading the pec.
  • Flaring the elbow straight out to 90°, which places excessive stress on the shoulder.
  • Bending the wrist back under the weight instead of keeping it stacked over the forearm, risking a wrist strain.

Häufig gestellte Fragen

What muscles does the dumbbell lying one arm press work?

It primarily works the chest (pectoralis major, both the upper clavicular and lower sternal fibers), with the front deltoids and triceps acting as synergists. Pressing one-armed also makes your core work to resist rotation.

Why press with one arm instead of two?

Single-arm pressing builds left-right balance and corrects strength differences between sides, and the off-center load forces your core to resist rotation for extra stability work.

Can I do this on the floor instead of a bench?

Yes. The floor limits how far the dumbbell can travel, which shortens the range of motion and is easier on the shoulder, making it a good option when no bench is available.

How many sets and reps should I do?

For most lifters, 3–4 sets of 8–12 reps per arm works well. Use a weight you can control through a full range without your torso twisting.

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