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Dumbbell One-Arm Prone Curl exercise demonstration - starting position (step 1 of 2)
Showing step 1 of 2
Step-by-step demonstration of the Dumbbell One-Arm Prone Curl exercise showing proper form and technique

Dumbbell One-Arm Prone Curl

Target Muscles

Primary:
Secondary:

Equipment Required

Exercise Type

Weight & Reps

How To Do

Lie face down on an incline bench with your chest supported and let one arm hang straight down holding a dumbbell, palm facing up. Keeping your upper arm still, curl the dumbbell toward your shoulder by bending your elbow, then lower it back down with control. Focus on moving only your forearm throughout the exercise.

Step-by-Step Instructions

  1. Adjust an incline bench to a comfortable angle and lie face down on it, ensuring your chest and stomach are supported by the bench.
  2. Hold a dumbbell in one hand with a supinated grip (palm facing upward). Let your arm hang straight down toward the floor.
  3. Keep your upper arm stationary and curl the dumbbell upward by contracting your biceps. Focus on moving only your forearm.
  4. Continue curling until the dumbbell is at shoulder level or as far as your range of motion allows.
  5. Slowly lower the dumbbell back to the starting position in a controlled manner.
  6. Repeat for the desired number of repetitions, then switch arms and repeat the exercise.

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Frequently Asked Questions

What muscles does the Dumbbell One-Arm Prone Curl work?
This exercise primarily targets the biceps, especially the long head, while also engaging the forearms for grip and stability. The prone position helps isolate the biceps by reducing momentum and shoulder involvement.
What equipment do I need for the Dumbbell One-Arm Prone Curl, and are there any alternatives?
You need a dumbbell and an incline bench to perform this move correctly. If you don’t have an incline bench, you can use a flat bench with your torso supported or perform the same motion while bending over at the waist, though stability will be harder to maintain.
Is the Dumbbell One-Arm Prone Curl suitable for beginners?
Yes, it can be suitable for beginners because it naturally limits body swing and helps focus on bicep isolation. Start with a lighter dumbbell, perfect your form, and gradually increase the weight to avoid strain.
What are common mistakes to avoid when doing the Dumbbell One-Arm Prone Curl?
Avoid swinging your arm or using your shoulder to lift the weight, as this reduces bicep activation. Also, do not let your wrist bend excessively; keep it in a neutral position throughout the curl for better control and safety.
How many sets and reps should I do for the Dumbbell One-Arm Prone Curl?
A common approach is 3 sets of 8–12 reps per arm for muscle growth, or 2–3 sets of 12–15 reps for muscular endurance. Ensure you maintain controlled movement and proper form across all repetitions.
Are there any safety considerations when performing the Dumbbell One-Arm Prone Curl?
Support your chest fully on the bench to protect your lower back, and avoid jerking the weight to prevent elbow strain. Always choose a manageable weight that allows you to maintain slow, controlled reps without losing form.
What variations can I try for the Dumbbell One-Arm Prone Curl?
You can perform a two-arm version for efficiency or use an EZ bar for a different grip feel. Changing bench angle or wrist position can also slightly shift muscle emphasis, adding variety to your biceps training.