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Concentration Curl

Seated single-arm curl that locks the elbow for strict biceps.

dumbbellbeginnerFilm: side
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AI form check · side view
Full movement, looped — roughly what the AI tracks when it scores your reps.Demo footage · Pexels

Muscles worked

Biceps
Forearms
PrimarySecondaryStabilizer

Form tips

  • Sit, elbow braced on the inner thigh.
  • Curl up, squeeze, lower slowly.

Watch the loop a couple of times, then match the tempo and range of motion.

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