How to Do Machine Preacher Curls
Start and end of one clean rep of Machine Preacher Curls.
Quick facts
| Primary muscle | Biceps |
|---|---|
| Secondary muscles | — |
| Equipment | Machine |
| Category | Strength |
How to perform Machine Preacher Curls
- Sit down on the Preacher Curl Machine and select the weight.
- Place the back of your upper arms (your triceps) on the preacher pad provided and grab the handles using an underhand grip (palms facing up). Tip: Make sure that when you place the arms on the pad you keep the elbows in. This will be your starting position.
- Now lift the handles as you exhale and you contract the biceps. At the top of the position make sure that you hold the contraction for a second. Tip: Only the forearms should move. The upper arms should remain stationary and on the pad at all times.
- Lower the handles slowly back to the starting position as you inhale.
- Repeat for the recommended amount of repetitions.
Muscles worked
- Biceps (primary): bends the elbow and turns the palm up during pulls and curls.
Sets & reps by goal
| Goal | Sets × reps | Load | Rest |
|---|---|---|---|
| Strength | 3–5 × 3–5 | Heavy (~85%+) | 2–3 min |
| Hypertrophy | 3–4 × 8–12 | Moderate (~65–75%) | 60–90 s |
| Endurance | 2–3 × 15–20 | Lighter (~50–60%) | 30–45 s |
Pick the row that matches your goal. If you're newer, anchor in the hypertrophy range while you groove the form.
Form tips
- Keep the upper arm still and pinned to your side so the movement happens only at the elbow.
- Set the seat and pads so the machine's pivot lines up with the joint you're training before your first rep.
- Treat every rep the same — a repeatable setup and bar path is what lets you add weight safely over time.
- Control the lowering phase — a 2–3 second descent builds more than dropping the weight.
Common mistakes
- Swinging the torso to fling the weight up instead of actually curling it.
- Leaving the seat or range on a setting that forces the joint into an awkward angle.
- Chasing weight jumps before the current load feels solid on every rep.
Frequently asked questions
What muscles does Machine Preacher Curls work?
Machine Preacher Curls is a focused movement that primarily works the biceps.
What equipment do I need for Machine Preacher Curls?
Machine Preacher Curls needs the corresponding weight-stack or plate-loaded machine.
How many sets and reps should I do for Machine Preacher Curls?
It depends on your goal: about 3–5 sets of 3–5 heavy reps for strength, 3–4 sets of 8–12 for muscle growth, or 2–3 sets of 15–20 for endurance. Pick the row that matches your goal. If you're newer, anchor in the hypertrophy range while you groove the form.
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