Dumbbell Lying One Arm Pronated Triceps Extension
Dumbbell Lying One Arm Pronated Triceps Extension Exercise Description
The Dumbbell Lying One Arm Pronated Triceps Extension is a single‑arm elbow‑extension exercise that targets the triceps brachii. Performed supine on a flat bench, you move a dumbbell from near the side of your head back to a stacked position over the shoulder by hinging only at the elbow. The pronated (overhand) grip fixes the forearm in pronation and encourages a neutral wrist while maintaining consistent tension through the arc. With the scapulae retracted and depressed and the shoulder kept relatively still, the movement emphasizes pure elbow extension; the long head of the triceps is placed on stretch because the shoulder is flexed. The stable bench setup supports a neutral spine and helps you focus on precise elbow path, controlled range, and smooth repetitions. This variation is also known as a single‑arm lying triceps extension with an overhand grip.
- Muscle Groups: Triceps
- Target Muscles: Triceps Brachii - Long Head
- Assisting Muscles: Triceps Brachii - Lateral Head, Triceps Brachii - Medial Head
- Stabilizing Muscles: Infraspinatus, Rhomboid Major, Subscapularis, Trapezius - Lower Fibers, Trapezius - Middle Fibers
- Body Area: Upper Body
- Body Parts: Arms, Upper Arms
- Body Surface: Back
- Body Symmetry: Unilateral
- Equipment: Dumbbell
- Exercise Patterns: Other
- Exercise Type: Strength
- Functional Grouping: Elbow Extensors
- Joint Involvement: Single-joint
- Muscle Location: Inner Tricep
- Movement Direction: Other
- Muscle Position: Posterior
- Gender: Female
How To Do The Dumbbell Lying One Arm Pronated Triceps Extension Exercise
‘- Lie supine on a flat bench with feet flat, head neutral, and spine in a natural curve.
– Retract and gently depress your shoulder blades to set the upper back.
– Hold a dumbbell in one hand with an overhand (pronated) grip; keep the wrist straight.
– Press the dumbbell to arm’s length so the elbow is stacked over the same-side shoulder.
– Keep the upper arm still; only the elbow moves throughout the exercise.
– Lower the dumbbell by bending the elbow, guiding it toward the same‑side temple/ear.
– Maintain a neutral wrist and keep the elbow pointing generally toward the ceiling (avoid flaring wide).
– Descend under control to a comfortable depth without letting the weight contact your head.
– Extend the elbow to return to the start, finishing with the arm straight without snapping the joint.
– Keep ribs quiet and torso stable; avoid arching or shifting on the bench.
– Switch arms and repeat, matching the same controlled range and form.
Dumbbell Lying One Arm Pronated Triceps Extension Tips
‘- Set your feet flat and keep your head neutral to support a natural spinal curve on the bench.
– Retract and gently depress your shoulder blades before starting to create a stable upper‑back base.
– Use a firm overhand (pronated) grip and keep your wrist straight to maintain a neutral wrist position.
– Start with the elbow stacked directly over the same‑side shoulder when the arm is extended.
– Keep the upper arm still so that only the elbow joint moves during each repetition.
– Lower the dumbbell toward the same‑side temple/ear to guide a consistent elbow path.
– Keep the elbow generally pointing toward the ceiling instead of flaring wide.
– Control the descent and stop before the dumbbell touches your head.
– Extend the elbow smoothly, finishing with a straight arm without snapping or locking the joint.
– Keep your ribs quiet and torso stable on the bench so you don’t arch or shift as you move the weight.
– When switching arms, match the same controlled range of motion and form on the other side.
Dumbbell Lying One Arm Pronated Triceps Extension Beginner Introduction
The Dumbbell Lying One Arm Pronated Triceps Extension is a bench‑based arm move that highlights one side at a time. Lying on a flat bench, a dumbbell travels in an arc from beside the head to a position above the shoulder, with the elbow acting like a hinge. The palm‑down grip sets the forearm in a fixed position and encourages a straight wrist, which helps maintain steady effort through the whole motion. Because the upper arm stays relatively still and the shoulder remains quiet, the work centers on the back of the upper arm rather than the chest or shoulders.
The bench provides a solid base for the head, torso, and hips, encouraging a natural body line while the weight moves. With the shoulder set back and down and the arm angled so the elbow points upward, the triceps move from a stretched position into a strong lockout. The exercise invites smooth, deliberate repetitions and an even path on both sides, emphasizing control, stability, and consistent elbow tracking.