Dumbbell One Arm Prone Curl
Dumbbell One Arm Prone Curl Exercise Description
The Dumbbell One Arm Prone Curl is a chest‑supported, unilateral elbow‑flexion exercise that emphasizes the biceps brachii. Lying prone on an incline bench limits body swing and trunk assistance, encouraging strict movement at the elbow through a long, controlled range of motion. Using a supinated grip (palm up) places greater emphasis on the biceps, with the brachialis and brachioradialis assisting. The arm hangs vertically under the shoulder so gravity provides a clear line of pull, helping you keep the upper arm still while the forearm moves. Training one arm at a time promotes precise scapular control, wrist alignment, and consistent technique from side to side.
- Muscle Groups: Biceps
- Target Muscles: Biceps Brachii - Short Head
- Assisting Muscles: Brachialis, Brachioradialis
- Stabilizing Muscles: Infraspinatus, Rhomboid Major, Subscapularis, Trapezius - Lower Fibers, Trapezius - Middle Fibers
- Body Area: Upper Body
- Body Parts: Arms, Upper Arms
- Body Surface: Front
- Body Symmetry: Unilateral
- Equipment: Dumbbell
- Exercise Patterns: Pull
- Exercise Type: Strength
- Functional Grouping: Elbow Flexors, Forearm Supinators
- Joint Involvement: Single-joint
- Muscle Location: Inner Bicep
- Movement Direction: Vertical
- Muscle Position: Anterior
- Gender: Male
How To Do The Dumbbell One Arm Prone Curl Exercise
‘- Set an incline bench so your chest is supported and your arm can hang straight down without the dumbbell touching the floor.
– Lie prone with your sternum on the pad, feet planted, and spine and neck in a neutral position.
– Hold a dumbbell in one hand with a supinated grip (palm up). Let the arm hang under the shoulder; elbow near full extension.
– Set the shoulder by gently retracting and depressing the scapula; keep the upper arm vertical and still.
– Curl by flexing the elbow only. Do not swing the arm, arch the back, or shrug.
– Raise until the forearm is roughly vertical and the dumbbell approaches shoulder height while the elbow stays beneath the shoulder.
– Pause briefly; keep the wrist neutral (avoid bending at the wrist).
– Lower slowly to near full elbow extension without letting the shoulder roll forward or the weight rest on the floor.
– Maintain chest contact with the bench and breathe continuously.
– Switch arms and repeat with the same attention to form.
Dumbbell One Arm Prone Curl Tips
‘- Set the incline bench so your arm can hang straight down without the dumbbell touching the floor.
– Keep your sternum on the pad with feet planted and your spine and neck in a neutral position.
– Let the working arm hang straight under the shoulder with the elbow near full extension before you start curling.
– Use a supinated grip (palm up) and keep the upper arm vertical and still throughout the movement.
– Gently retract and depress the scapula on the working side before curling and maintain that position.
– Flex only at the elbow to curl; avoid swinging the arm, arching the back, or shrugging the shoulder.
– Raise the dumbbell until the forearm is roughly vertical and the dumbbell approaches shoulder height, keeping the elbow beneath the shoulder.
– Pause briefly at the top position before lowering.
– Keep the wrist neutral during the curl and avoid bending at the wrist.
– Lower the weight slowly to near full elbow extension without letting the shoulder roll forward or the dumbbell rest on the floor, maintaining chest contact with the bench and continuous breathing.
Dumbbell One Arm Prone Curl Beginner Introduction
In the Dumbbell One Arm Prone Curl, the lifter lies face‑down on an angled bench so the chest is supported while a single arm moves a dumbbell. Because the body is braced against the bench and the working arm hangs beneath the shoulder, the movement centers on bending and straightening the elbow with very little help from the rest of the body. The hand is turned so the palm faces upward, which places strong emphasis on the biceps while the forearms assist. Gravity acts directly on the hanging weight, encouraging a smooth arc as the forearm travels upward and then back down.
This setup highlights strict form and control. The shoulder and upper arm stay quiet as the lower arm moves through a long, deliberate path, giving clear feedback on how steadily the elbow is working. Since only one side is trained at a time, the exercise brings extra attention to shoulder‑blade position, wrist alignment, and matching the quality of motion between arms, helping build balanced strength and technique.