Preacher Curl Machine
The preacher curl machine is a biceps isolation exercise that uses a preacher pad to eliminate shoulder involvement. The fixed arm position maximizes bicep contraction throughout the movement and is particularly effective for developing lower bicep fullness.
How to do it
- Sit at the preacher curl machine and adjust the seat so your upper arms rest flat on the angled pad.
- Grasp the handles with a supinated grip and arms fully extended.
- Curl the handles upward toward your shoulders by flexing your elbows.
- Pause at the top and squeeze your biceps.
- Slowly lower the handles back to the fully extended starting position.
- Repeat for the desired number of repetitions.
Form cues
- Press your upper arms flat against the pad.
- Keep your chest tall and shoulders back.
- Control the weight as you lower your arms.
- Squeeze your biceps at the top of the curl.
Breathing: Exhale as you curl the handles upward, and inhale slowly as you lower them back down.
Common mistakes
- Lifting your elbows off the pad because it shifts work away from the biceps and onto your shoulders.
- Using momentum to swing the weight up because it reduces tension on your arm muscles.
- Rushing through the lower phase because you miss out on valuable muscle-building time under tension.
Muscles worked
Primary: biceps. Secondary: forearms.
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 sharp elbow or shoulder discomfort, ease off and choose a gentler arm exercise or lower the weight.
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 elbows hurt during preacher curls?
If you feel discomfort in your elbow joints, you might be hyperextending at the bottom. Stop just short of locking your arms out straight.
How often should I do preacher curls?
Two to three times per week with at least one rest day between sessions is plenty for recovery and growth.
What if I don't feel it in my biceps?
Lower the weight, slow down your tempo, and make sure you are actively squeezing your biceps at the top of each repetition.