Barbell Curl
Arms
Weight & Reps
Barbell
The barbell curl is the classic bicep-building exercise. Using a straight bar with an underhand grip, curl the weight up while keeping your elbows pinned to your sides for strict form.
How to Do Barbell Curl
- Stand with feet shoulder-width apart, gripping the bar with an underhand (supinated) grip
- Pin your elbows to your sides — they should not move forward or backward during the curl
- Curl the bar up to shoulder height, squeezing the biceps hard at the top
- Lower with a controlled 2-3 second negative — don't let the bar drop
Form Cues
- Stand with feet shoulder-width apart, gripping the bar with an underhand (supinated) grip
- Pin your elbows to your sides — they should not move forward or backward during the curl
- Curl the bar up to shoulder height, squeezing the biceps hard at the top
- Lower with a controlled 2-3 second negative — don't let the bar drop
Common Mistakes to Avoid
- Swinging the hips forward to generate momentum (cheat curling) instead of using strict form
- Moving the elbows forward during the curl, which shifts the load to the front delts
- Not fully extending the arms at the bottom — partial reps miss the stretched position of the biceps
Muscles Worked
Primary
Biceps Brachii (Short Head)
Biceps Brachii (Long Head)
Secondary
Brachialis
Brachioradialis
Forearm Flexors
Recommended Sets and Reps
Strength
4-5 sets
3-5 reps
3-5 min rest
Hypertrophy
3-4 sets
8-12 reps
60-90s rest
Endurance
2-3 sets
15-20 reps
30-60s rest
Variations and Alternatives
Frequently Asked Questions
What muscles does the barbell curl work?
Barbell curls primarily target both heads of the biceps brachii (short and long), with secondary work from the brachialis, brachioradialis, and forearm flexors.
How much should a beginner barbell curl?
Beginner men typically curl 30-50 lbs (14-23 kg), while beginner women start at 15-30 lbs (7-14 kg). Strict form with lighter weight is more effective than heavy cheat curls.
Barbell curl vs dumbbell curl — which is better?
Barbell curls allow heavier loading and both arms work together, while dumbbell curls address imbalances and allow supination (wrist rotation) for a better bicep squeeze. Use barbell curls for strength and dumbbell curls for balanced development.
Watch Form Guide on YouTube
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