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Dumbbell Standing One Arm Concentration Curl animation

How to do the Dumbbell Standing One Arm Concentration Curl

BicepsDumbbellIntermediate

The dumbbell standing one arm concentration curl strips away momentum and forces your bicep to work in true isolation, making every rep count far more than in standard curls. Master this movement and you build not just size but that coveted peak that separates serious arms from average ones.

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Muscles worked

Primary
Biceps
Secondary
BrachialisForearms

Step-by-step

  1. Hinge slightly forward at the hips, brace your core, and let the working arm hang straight down holding the dumbbell with a supinated grip.
  2. Pin your upper arm against the inside of your thigh or let it hang free, ensuring it stays completely vertical and stationary throughout the rep.
  3. Curl the dumbbell smoothly toward your shoulder by contracting the bicep, fully supinating the wrist at the top to maximize peak contraction.
  4. Lower the weight under strict control through the full range of motion until your arm is completely straight before initiating the next rep.

Common mistakes

  • Swinging the torso to generate momentum — fix this by keeping your hips still and initiating every rep from a dead stop at full arm extension.
  • Letting the elbow drift forward as the weight rises — fix this by consciously keeping your upper arm locked vertical so the bicep does all the work.
  • Cutting the range of motion short at the bottom — fix this by fully extending your elbow at the end of each rep to load the long head and maximize stretch.

Pro tip — At the absolute top of each rep, actively twist your pinky toward your shoulder as hard as you can for a half-second pause — this forced supination recruits more bicep fibers than simply lifting the weight alone.

Sets & reps by goal

Build muscle3–4 sets × 10–15 reps
Get stronger3–4 sets × 6–8 reps
Lose fat / tone3 sets × 12–20 reps

Rest: 60–90 sec between sets.

More Biceps exercises

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