Machine Biceps Curl
Also known as: machine bicep curl, bicep curl machine, seated machine curl
- Secondary muscles
- Forearms
- Body part
- Upper Arms
- Position
- Standing
- Laterality
- Bilateral (both sides together)
- Category
- Strength
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A guided lever path and a supported seat remove balance and cheating from the equation, making this the easiest spot in the curl family to push near failure safely. The pin-loaded stack also changes weight in seconds, so it suits drop sets and rest-pause work better than any barbell.
How to do the Machine Biceps Curl
- Adjust the seat height and position yourself on the machine with your back against the pad.
- Grasp the handles with an underhand grip, palms facing up, and keep your elbows close to your sides.
- Exhale and curl the handles upward, contracting your biceps.
- Pause for a moment at the top of the movement, squeezing your biceps.
- Inhale and slowly lower the handles back to the starting position, fully extending your arms.
- Repeat for the desired number of repetitions.
Tip: Lower for three seconds and stop just short of locking out the elbow to keep the muscle under tension.
Muscles worked
Common mistakes
- Elbows drifting forward — as the elbows come up the front delt starts to lift the weight; pin the elbows to your sides and let only the forearm move.
- Swinging from the hips — a small rock backward on each rep means the weight is too heavy; drop it and curl from a dead stop.
- Cutting the bottom short — stopping with the elbow bent shortens the range where the biceps are stretched; lower until the arm is nearly straight.
- Wrists curling at the top — flexing the wrist toward you brings the forearm flexors in; keep the wrist neutral or slightly extended.
Sets, reps and where it fits
| Goal | Sets × reps | Rest |
|---|---|---|
| Muscle growth | 3–4 × 10–15 | 60–90 s |
| Endurance / finisher | 2–3 × 15–20 | 45 s |
| Strength | Not ideal — pick a compound lift for the same muscle | — |
Curls go at the end of a pull session or arm day, after the rows and pulldowns that also load the biceps. Superset them with triceps pushdowns on the same cable stack or triceps extensions with the same dumbbells.
Variations and alternatives
Similar exercises
Frequently asked questions
What muscles does the Machine Biceps Curl work?
The Machine Biceps Curl primarily works the biceps. It also involves the forearms, which assist the movement and stabilise the joints.
Is the Machine Biceps Curl good for beginners?
Yes. The Machine Biceps Curl is rated beginner: it uses a machine and the movement is simple to learn. Start light, focus on the full range of motion and add load once every rep looks the same.
What can I do instead of the Machine Biceps Curl?
If you cannot do the Machine Biceps Curl, try the Leg Resisted Biceps Curl, the Side Lying Bodyweight Biceps Curl or the Dumbbell Curl. Each of them trains the biceps through a similar movement, so you can swap them in without changing the rest of the workout.
How many sets and reps should I do?
It depends on your goal. For the Machine Biceps Curl, a sensible starting point is muscle growth: 3–4 × 10–15 with 60–90 s rest; endurance / finisher: 2–3 × 15–20 with 45 s rest. Do it after your compound lifts. It is a finishing movement, not the main event.
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Exercise data and animations are licensed ExerciseDB content used in SetGrip. This page is for general information and is not medical or coaching advice.