Exercise guide
Dumbbell One Arm Standing Curl
- Beginner
- Isolation
- Rep-based
- Upper arms
This unilateral isolation exercise targets the biceps brachii, allowing for a greater mind-muscle connection and helping to correct strength imbalances between arms. By focusing on one arm at a time, you can maximize muscle fiber recruitment and ensure a full range of motion.
Reviewed by the Crucible team · Updated June 2026
Muscles worked
Setup
- Stand with your feet shoulder-width apart and a slight bend in your knees for stability.
- Hold a dumbbell in one hand with your arm fully extended by your side and your palm facing your thigh.
- Engage your core and pull your shoulders back and down to maintain a tall, upright posture.
- Place your non-working hand on your hip or keep it by your side to help maintain balance.
How to do it
- Exhale as you curl the weight toward your shoulder, rotating your forearm so your palm faces up as the dumbbell rises.
- Keep your elbow pinned to your ribcage and avoid letting it drift forward or backward during the movement.
- Squeeze your bicep hard at the top of the movement for a one-second pause.
- Inhale as you slowly lower the dumbbell back to the starting position with a controlled 2-second tempo.
Form checklist
- Keep your elbow tucked into your side throughout the entire set.
- Avoid using momentum or swinging your torso to lift the weight.
- Maintain a neutral wrist position; do not let the wrist collapse or curl excessively.
- Ensure a full range of motion by fully extending the arm at the bottom of every rep.
Pro tips
- Focus on turning your pinky finger toward your shoulder at the top of the curl to maximize the peak contraction of the biceps.
- Keep your non-working side completely still to ensure the core is stabilizing the unilateral load effectively.
Make it harder
- Implement a 4-second eccentric (lowering) phase to increase time under tension and muscle fiber damage.
- Add a 'static hold' with the non-working arm at a 90-degree angle while the working arm completes its repetitions.
Frequently asked
- What muscles does the dumbbell one arm standing curl work?
- The dumbbell one arm standing curl primarily targets the biceps, and also works the forearms as secondary muscles.
- What equipment do you need for the dumbbell one arm standing curl?
- The dumbbell one arm standing curl uses dumbbell.
- Is the dumbbell one arm standing curl good for beginners?
- Yes. The dumbbell one arm standing curl is a beginner-friendly movement and a strong foundation to build on.