Machine Preacher Curl
A preacher curl performed on a plate-loaded or selectorized machine, locking the elbows on a pad and providing a fixed strength curve.
Upper arms · Preacher Curl Machine · Beginner


Muscles worked by the Machine Preacher Curl
Primary
Secondary
Also called: bicep, biceps brachii, biceps muscle, guns.
Equipment
Also called: preacher machine, preacher curl, scott curl machine.
How to do the Machine Preacher Curl
- Sit at a preacher curl machine and adjust the seat so your armpits sit at the top of the pad.
- Place the upper arms flat on the pad and grip the handles.
- Start with the arms extended — but not locked — at the bottom.
- Curl the handles up by flexing the elbows; squeeze hard at the top.
- Lower slowly back to the starting position and repeat.
Form tips
- Do not let the elbows lift off the pad at the top.
- Stop just short of full extension at the bottom to protect the elbow tendons.
At a glance
| Body part | Upper arms |
|---|---|
| Category | Strength |
| Force type | Pull |
| Mechanic | Isolation |
| Difficulty | Beginner |
| Equipment | Preacher Curl Machine |
| Goals | Hypertrophy |
| Tags | Arm day |
| MET | 5.0 (metabolic equivalent, for calorie estimates) |
| Unilateral | No |
| Bodyweight | No |
| Dataset id | machine-preacher-curl |
Machine Preacher Curl in German & Spanish
| German | Maschinen-Scottcurl |
|---|---|
| Spanish | Curl en Máquina de Predicador |
Descriptions, instructions and tips ship in all three languages in the JSON.
Exercise data (JSON)
The record below is exactly what exercises.json ships for this exercise — names, descriptions, instructions and tips in English, German and Spanish.
{
"id": "machine-preacher-curl",
"name_en": "Machine Preacher Curl",
"name_de": "Maschinen-Scottcurl",
"name_es": "Curl en Máquina de Predicador",
"description_en": "A preacher curl performed on a plate-loaded or selectorized machine, locking the elbows on a pad and providing a fixed strength curve.",
"description_de": "Ein Scottcurl an der Maschine, bei dem die Ellenbogen auf dem Pad fixiert sind und eine geführte Kraftkurve die Bizepskontraktion kontrolliert.",
"description_es": "Un curl de bíceps en máquina de predicador que fija los codos sobre el almohadillado y ofrece una curva de fuerza guiada.",
"category": "strength",
"force_type": "pull",
"mechanic": "isolation",
"difficulty": "beginner",
"equipment": "preacher_curl_machine",
"body_part": "upper_arms",
"primary_muscles": [
"biceps_brachii"
],
"secondary_muscles": [
"brachialis"
],
"goals": [
"hypertrophy"
],
"tags": [
"arm_day"
],
"is_unilateral": false,
"is_bodyweight": false,
"instructions_en": [
"Sit at a preacher curl machine and adjust the seat so your armpits sit at the top of the pad.",
"Place the upper arms flat on the pad and grip the handles.",
"Start with the arms extended — but not locked — at the bottom.",
"Curl the handles up by flexing the elbows; squeeze hard at the top.",
"Lower slowly back to the starting position and repeat."
],
"instructions_de": [
"Setze dich an die Maschine und stelle den Sitz so ein, dass die Achseln oben auf dem Pad aufliegen.",
"Lege die Oberarme flach auf das Pad und greife die Griffe.",
"Starte mit leicht gebeugten Armen — nicht vollständig gestreckt.",
"Curle die Griffe nach oben und halte kurz an der Spitze an.",
"Senke das Gewicht langsam zurück in die Ausgangsposition und wiederhole."
],
"instructions_es": [
"Siéntate y ajusta el asiento para que las axilas queden en la parte superior del almohadillado.",
"Coloca los brazos sobre el soporte y sujeta las asas.",
"Comienza con los brazos ligeramente flexionados, sin bloquear los codos.",
"Flexiona los codos hacia arriba y aprieta en la posición máxima.",
"Baja lentamente hasta la posición inicial y repite."
],
"tips_en": [
"Do not let the elbows lift off the pad at the top.",
"Stop just short of full extension at the bottom to protect the elbow tendons."
],
"tips_de": [
"Hebe die Ellenbogen nicht vom Pad ab.",
"Stoppe kurz vor der vollen Streckung, um die Ellenbogensehnen zu schonen."
],
"tips_es": [
"No separes los codos del almohadillado.",
"Para justo antes de la extensión completa para proteger los tendones del codo."
],
"met": 5.0,
"images": {
"flat": {
"start": "images/flat/machine-preacher-curl-start.webp",
"peak": "images/flat/machine-preacher-curl-peak.webp"
}
}
}Fetch just this exercise
const { exercises } = await fetch(
"https://exercise-dataset.com/exercises.json"
).then(r => r.json());
const ex = exercises.find(e => e.id === "machine-preacher-curl");Free for personal and commercial in-app use with attribution (“Exercise data by RepDB”) — see the license and ready-made attribution snippets. Redistributing the data as a dataset or API is not permitted.