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How to do it
- Stand tall with feet shoulder-width apart, gripping the bar underhand at shoulder width with arms fully extended.
- Pin your elbows to your sides and brace your core to stop your torso from swinging back.
- Curl the bar upward by bending only at the elbows, keeping the upper arms locked in place.
- Squeeze the biceps hard at the top with the bar near the front of the shoulders.
- Lower the bar slowly over 2 to 3 seconds, fighting the bar all the way back to full extension.
- Pause at the bottom in a fully straight-arm position, then repeat for clean controlled reps.
Common mistakes
- Swinging the torso to throw the bar up, which transfers work from the biceps to the lower back.
- Drifting the elbows forward at the top, which turns the curl into a partial front raise.
- Cutting the range short and not extending the arms fully at the bottom of each rep.
- Gripping the bar too wide, which shifts tension off the biceps and stresses the wrists.
Muscles worked
- Primary
- Biceps
Good to know
- What muscles does the Barbell Curl work?
- Mainly the biceps.
- What equipment do you need for the Barbell Curl?
- It uses a barbell. Without it, the Bayesian Curl and the Zottman Curl train the same muscles the same way.
- Is the Barbell Curl good for beginners?
- GymVim rates it intermediate. For a beginner-rated exercise on the same muscle and movement, see the Alternate Hammer Curl.