{
  "$schema": "https://openexercise.org/schema/v0/exercise.json",
  "aliases": [
    {
      "text": "preacher curl",
      "kind": "common"
    },
    {
      "text": "ez bar preacher curl",
      "kind": "common"
    },
    {
      "text": "scott curl",
      "kind": "common"
    },
    {
      "text": "Preacher Curls",
      "kind": "common"
    }
  ],
  "anatomy": {
    "muscles": [
      {
        "muscle": "biceps-brachii",
        "role": "prime-mover"
      },
      {
        "muscle": "brachialis",
        "role": "prime-mover"
      },
      {
        "muscle": "brachioradialis",
        "role": "synergist"
      },
      {
        "muscle": "forearm-flexors",
        "role": "stabilizer"
      }
    ],
    "joints": [
      {
        "joint": "elbow",
        "actions": [
          "flexion"
        ]
      },
      {
        "joint": "wrist",
        "actions": [
          "isometric-stabilization"
        ]
      }
    ]
  },
  "classification": {
    "modalities": [
      "hypertrophy",
      "strength"
    ],
    "movement_patterns": [
      "isolation-elbow-flexion"
    ],
    "mechanics": "isolation",
    "force": "pull",
    "kinetic_chain": "open",
    "laterality": "bilateral",
    "planes": [
      "sagittal"
    ],
    "contraction": [
      "dynamic"
    ],
    "level": "beginner"
  },
  "equipment": {
    "required": [
      [
        "ez-bar"
      ],
      [
        "preacher-bench"
      ]
    ]
  },
  "external_ids": {
    "wger": "465"
  },
  "id": "oec:ez-bar-preacher-curl",
  "instructions": {
    "setup": [
      "Adjust the preacher bench seat height so your armpits rest comfortably over the top edge of the pad and your chest sits firmly against it.",
      "Grasp the inner angled grips of the EZ-bar with an underhand grip and position your triceps flat against the angled pad."
    ],
    "steps": [
      "Lower the bar under control until your elbows are fully extended without hyperextending.",
      "Contract your biceps to curl the barbell upward until your forearms are nearly vertical.",
      "Squeeze your biceps at the peak of contraction, then lower the bar slowly back to the starting position."
    ],
    "breathing": "Inhale as you lower the barbell under control; exhale as you curl the weight toward the top.",
    "cues": [
      "Keep your upper arms glued to the pad.",
      "Do not lift your hips off the seat.",
      "Control the bottom portion of each rep."
    ],
    "common_faults": [
      {
        "fault": "Allowing the elbows to lift off the pad during the curl.",
        "correction": "Keep your triceps firmly planted against the pad throughout the entire range of motion."
      },
      {
        "fault": "Hyperextending or bouncing out of the bottom position.",
        "correction": "Lower the bar smoothly and stop just short of a harsh, locked-out hyperextension under heavy load."
      }
    ],
    "safety": {
      "precautions": [
        "Avoid using excessive loads that force aggressive bouncing at the bottom, which places high strain on the distal biceps tendon."
      ],
      "spotter": "not-needed"
    }
  },
  "measurement": {
    "load": {
      "convention": "total",
      "implements": 1,
      "kind": "external"
    },
    "profiles": [
      {
        "required": [
          "reps",
          "load"
        ],
        "optional": [
          "rpe"
        ]
      }
    ],
    "records": {
      "e1rm": true,
      "volume": true
    },
    "reps_counted": "total"
  },
  "name": "EZ-Bar Preacher Curl",
  "previous_ids": [
    "oec:preacher-curls"
  ],
  "provenance": {
    "generated": [
      "/name",
      "/summary",
      "/classification",
      "/anatomy",
      "/equipment",
      "/measurement",
      "/instructions",
      "/setup",
      "/relations"
    ],
    "license": "CC-BY-SA-4.0",
    "review": {
      "status": "machine-generated",
      "model": "gemini-3.8-flash",
      "at": "2026-10-31"
    },
    "sources": [
      {
        "title": "wger: Preacher Curls",
        "url": "https://wger.de/en/exercise/465/view-base",
        "license": "CC-BY-SA-3.0",
        "author": "cgoob883"
      }
    ]
  },
  "relations": [
    {
      "type": "variation-of",
      "target": "oec:ez-bar-curl"
    },
    {
      "type": "substitute-for",
      "target": "oec:dumbbell-preacher-curl"
    },
    {
      "type": "substitute-for",
      "target": "oec:machine-preacher-curl"
    },
    {
      "type": "substitute-for",
      "target": "oec:single-arm-dumbbell-preacher-curl"
    }
  ],
  "setup": {
    "grip": {
      "orientation": "supinated",
      "width": "shoulder"
    },
    "position": "seated",
    "range": "full"
  },
  "status": "active",
  "summary": "An isolated arm exercise where the upper arms are stabilized against a sloped preacher bench to emphasize elbow flexion."
}