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Biceps

Barbell curl: how to do it right

The barbell curl is the classic biceps exercise. It's simple, but most people swing it and lose much of the work.

Main muscle
Biceps
Also works
Brachialis, Forearms
Equipment
Barbell
Level
Beginner
Barbell curl: start position
Start position
Barbell curl: end position
End position

Step by step

  1. Stand with feet hip width apart and grip the bar with palms facing forward, hands shoulder width apart.
  2. Let your arms hang straight, elbows by your sides and shoulders back.
  3. Curl the bar up by bending your elbows, without letting them move forward.
  4. Curl until your forearms are almost vertical and squeeze your biceps for a moment.
  5. Lower the bar slowly until your arms are fully straight.

Tip: If the straight bar hurts your wrists, try the EZ bar or dumbbells.

Common mistakes

Swinging your body

Leaning back to lift the bar moves the work to your back. If you need momentum, the weight is too heavy.

Elbows drifting forward

If your elbows move forward, your shoulders take over. Keep them by your sides.

Not straightening at the bottom

Cutting the range short at the bottom takes work off your biceps. Straighten your arms fully on every rep.

Lowering too fast

The lowering phase builds muscle too. Take about two seconds on the way down.

Sets and reps

Guide ranges. Start with a weight where the last rep is hard but your technique holds.

GoalSetsRepsRest
Strength3–53–62–3 min
Build muscle3–46–121.5–2 min
Health and fitness2–310–151 min

In GymOrbita you log every set and the app suggests the weight for your next session based on what you did last time.

Alternatives

If the machine is busy or you want a variation:

FAQ

Straight bar or EZ bar?

The straight bar puts your biceps in their strongest position; the EZ bar is easier on the wrists. Use whichever feels right.

How often should I train biceps?

Twice a week usually works, bearing in mind that back exercises like rows and pull-ups train them too.

General technique information, not a substitute for professional advice. If you have an injury or pain, check with a doctor or physiotherapist first.

Add barbell curl to your routine

GymOrbita has this exercise with its animation: log the weight and reps of every set and track your progress. Free.