The close-grip barbell curl narrows the hands to hip-width or closer on a straight or EZ-bar. The narrow grip rotates the elbows slightly outward, putting more stretch on the long head of the biceps — the head responsible for the biceps peak you see flexed in a side pose.
What it is
The close-grip barbell curl is a barbell curl performed with hands at hip-width or closer (about 15-20 cm between thumbs). The narrow grip rotates the upper arms slightly outward, biasing the long (outer) head of the biceps — the source of the biceps peak.
Muscles worked
| Muscle | Contribution |
|---|---|
| Biceps long head | ~50 % |
| Biceps short head | ~25 % |
| Brachialis | ~15 % |
| Forearms | ~10 % |
How to close-grip barbell curl: 5 steps
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Stand tall
Feet hip-width, **grip the bar at 15-20 cm apart, supinated.**
-
Brace
**Elbows pinned to sides, core tight.**
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Curl up
**Curl by flexing the elbows.** Bar arcs up to chin level.
-
Peak squeeze
**Maximal biceps contraction at the top.**
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Controlled descent
**Lower over 2 seconds** to full arm extension.
How it differs from barbell curl
- Narrow grip. Hands at 15-20 cm apart instead of shoulder-width.
- Long-head emphasis. Biases the peak-building long head of the biceps.
- Heavier loads possible. The narrow grip is mechanically efficient — often handles 5-10 % more weight than the standard barbell curl.
- Wrist strain risk. Very narrow grip can stress the wrists — EZ-bar fixes this.
Common mistakes
When to use this variation
Use close-grip barbell curls to build the long head and biceps peak. Program 3 sets of 8-12 reps. Pair with wide-grip barbell curls in the same session for complete biceps coverage. Excellent finisher to a heavy biceps workout.
FAQ
How close is the grip?
15-20 cm between thumbs is the standard. Closer (touching thumbs) is the narrowest practical version but stresses the wrists.
Will it really build my peak?
The long head, when developed, creates the visible peak. Close-grip curls bias the long head, so consistent inclusion contributes to peak development over time.
EZ-bar or straight bar?
EZ-bar is friendlier at close grips. If your wrists tolerate it, the straight bar gives slightly better biceps activation.
Related exercises
- Barbell Curl: shoulder-width standard
- Wide-Grip Barbell Curl: opposite end of grip spectrum
- Incline Dumbbell Curl: another long-head focus
- Bayesian Curl: cable equivalent for long head
