Dumbbell Lying One Arm Press
Dumbbell Lying One Arm Press Exercise Description
The Dumbbell Lying One Arm Press is a unilateral horizontal press performed while lying supine on a stable surface. It primarily targets the pectoralis major, with assistance from the anterior deltoid and triceps brachii. Because only one side is loaded, you must brace your trunk to resist rotation so the ribcage and pelvis stay level. The movement emphasizes a controlled shoulder position: scapula lightly retracted and depressed against the surface, wrist stacked over the elbow, and the elbow tracking at roughly a 45–60° angle from the torso. Press the dumbbell over the mid‑chest, not toward the face or belly, and lower under control without letting the shoulder roll forward. This variation supports balanced pressing mechanics and reinforces precise path and joint stacking. Use a range of motion that maintains neutral spine, stable scapulae, and comfortable shoulder alignment. Perform the entire rep smoothly, avoiding any bounce, twist, or excessive arch.
- Muscle Groups: Chest, Pecs
- Target Muscles: Pectoralis Major - Sternal Head
- Assisting Muscles: Deltoid - Anterior, Triceps Brachii - Lateral Head
- Stabilizing Muscles: External Obliques, Internal Obliques, Rhomboid Major, Transversus Abdominis, Trapezius - Lower Fibers
- Body Area: Upper Body
- Body Parts: Chest
- Body Surface: Front
- Body Symmetry: Unilateral
- Equipment: Dumbbell
- Exercise Patterns: Push
- Exercise Type: Strength
- Functional Grouping: Horizontal Shoulder Adduction
- Joint Involvement: Multi-joint
- Muscle Location: Mid Chest
- Movement Direction: Horizontal
- Muscle Position: Anterior
- Gender: Female
How To Do The Dumbbell Lying One Arm Press Exercise
‘- Lie supine on a stable, flat surface (bench or floor); plant feet and keep a natural, slight lumbar arch.
– Hold one dumbbell over mid‑chest with a full grip; knuckles to the ceiling, wrist straight and stacked over the elbow.
– Set the working shoulder: gently retract and depress the scapula; keep the shoulder down away from the ear.
– Position the upper arm about 45–60° from the torso; forearm vertical.
– Place the free arm out to the side or on your torso for balance; keep hips and ribcage level.
– Inhale and lower the dumbbell under control to chest level, maintaining forearm vertical and shoulder blades set.
– Stop before the shoulder rolls forward; elbow should travel slightly below torso line if comfortable (or until triceps touch the floor if on the floor).
– Exhale and press the dumbbell back up over mid‑chest, finishing with the elbow straight without hyperextending or shrugging.
– Keep head neutral, feet rooted, and avoid torso rotation throughout.
– Common faults to avoid: flared elbows, bent or cocked wrists, bouncing at the bottom, pressing toward the face or stomach.
Dumbbell Lying One Arm Press Tips
‘- Lie on a stable, flat surface with feet planted and a natural, slight arch in your lower back.
– Brace your trunk so your ribcage and pelvis stay level, resisting any rotation.
– Grip the dumbbell fully with knuckles to the ceiling and keep the wrist straight, stacked over the elbow.
– Lightly retract and depress the working scapula so the shoulder stays down away from the ear.
– Set your upper arm at about a 45–60° angle from your torso with the forearm vertical.
– Place your free arm out to the side or on your torso to help maintain balance and level hips.
– Lower the dumbbell under control to chest level, keeping the forearm vertical and shoulder blades set.
– Stop the descent before the shoulder rolls forward; let the elbow go slightly below the torso line only if comfortable.
– Press the dumbbell back up over mid‑chest, not toward your face or stomach, finishing with a straight (not hyperextended) elbow.
– Keep your head neutral, feet rooted, and avoid bouncing, shrugging, elbow flare, and any twisting of the torso.
Dumbbell Lying One Arm Press Beginner Introduction
The Dumbbell Lying One Arm Press is a single‑dumbbell chest exercise performed flat on a bench or the floor, using only one arm at a time. This arrangement highlights the chest, front shoulders, and back of the upper arm, while the midsection works hard against rotation so the torso stays steady on the surface.
During each repetition, the working arm guides the weight up and down over the center of the chest, rather than drifting toward the face or stomach. The upper arm travels at a moderate angle from the body, and the shoulder blade rests gently drawn back and down into the bench or floor for a controlled, secure press. The non‑working side contributes by stabilizing the hips and ribs, encouraging even effort from both halves of the body. Smooth, unhurried motion with deliberate top and bottom positions turns this movement into a blend of pressing practice and body control, reinforcing consistent form and precise path on every rep.