Straight Barbell Curl
The straight barbell curl is a classic mass-building biceps exercise that allows for heavy loading through a standard curl pattern. The straight bar provides a challenging wrist supination position that maximizes bicep engagement.
How to do it
- Stand holding a straight barbell with an underhand grip at shoulder-width.
- Allow the bar to hang at arm's length in front of your thighs.
- Curl the bar upward toward your chest, keeping your elbows stationary.
- Pause at the top of the movement and squeeze your biceps.
- Slowly lower the bar to the starting position.
- Repeat for the desired number of repetitions.
Form cues
- Keep your elbows pinned to your sides.
- Grip the bar slightly wider than shoulder-width.
- Squeeze your biceps hard at the top.
- Lower the weight with control.
Breathing: Exhale as you curl the bar upward, and inhale as you lower it back to the starting position.
Common mistakes
- Swinging your torso to lift the weight, which reduces bicep engagement and puts stress on your lower back.
- Moving your elbows forward during the curl, which shifts work away from the biceps to the front deltoids.
- Rushing the descent, which misses out on the muscle-building benefits of the lowering phase.
Muscles worked
Primary: biceps. Secondary: forearms, shoulders.
Suggested sets & reps
Get fitter
3 sets × 10–12 reps, rest 60 s
Lose weight
3 sets × 12–15 reps, rest 45–60 s
Build muscle
3–4 sets × 8–12 reps, rest 90 s
Easier, harder & alternatives
Make it easier
Make it harder
Alternatives
Take care if…
- If you feel wrist or elbow discomfort, ease off or switch to an EZ-bar option.
General educational guidance, not medical advice. Stop on sharp pain and check with a qualified professional if unsure.
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Start free →Frequently asked questions
Why do my wrists hurt during a straight barbell curl?
A straight bar forces your wrists into a fixed position which can strain the joint. If you feel discomfort, try using an EZ curl bar for a more natural wrist angle.
How often can I do barbell curls?
2 to 3 times per week with at least one rest day between sessions is plenty for recovery and growth.
Should my upper arms stay completely still?
Yes, keep your elbows locked by your sides. Allowing your elbows to drift forward turns the movement into a partial front raise.