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Barbell Bicep Curl

Barbell Bicep Curl demonstration

Category

isolation

Difficulty

beginner

Equipment

barbell

Force Type

pull

How to Perform the Barbell Bicep Curl

  1. Stand upright with your feet shoulder-width apart and grasp a barbell with an underhand (supinated) grip, hands slightly wider than shoulder-width.
  2. Let the bar hang at arm's length in front of your thighs with your elbows tucked close to your sides.
  3. Brace your core and keep your upper arms stationary throughout the movement.
  4. Curl the bar upward in a smooth arc by contracting your biceps, keeping your wrists straight.
  5. Continue curling until the bar reaches shoulder level and your biceps are fully contracted.
  6. Squeeze your biceps hard at the top for a one-second count.
  7. Lower the bar back down in a controlled manner, taking about two seconds on the descent, until your arms are fully extended.

Common Mistakes to Avoid

Swinging the body to generate momentum

Keep your torso upright and stationary. If you need to swing, reduce the weight and focus on strict form.

Allowing elbows to drift forward

Pin your elbows to your sides throughout the entire rep. Only your forearms should move.

Using an excessively wide or narrow grip

Grip the bar slightly wider than shoulder-width to place balanced stress on both bicep heads.

Cutting the range of motion short

Fully extend your arms at the bottom and squeeze hard at the top. Partial reps reduce muscle activation.

Muscles Worked

Benefits

  • Allows heavier loading than dumbbell curls for maximum bicep overload
  • Builds overall bicep size by targeting both the long and short heads
  • Simple movement pattern that is easy to learn and progress on
  • Directly improves pulling strength for exercises like rows and pull-ups

Pro Tips

  • Use an EZ curl bar if straight bar curls cause wrist pain.
  • Slow down the eccentric (lowering) phase to 2-3 seconds for greater muscle growth.
  • Avoid leaning back at the top — this shifts the load off your biceps and onto your lower back.

Variations

Recommended Sets & Reps

Strength

4-5 sets of 4-6 reps at 80-85% 1RM

Hypertrophy

3-4 sets of 8-12 reps at 65-75% 1RM

Endurance

2-3 sets of 15-20 reps at 50-60% 1RM

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Training Guides

Articles featuring the barbell bicep curl in workout programs and training advice.

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