{
  "$schema": "https://openexercise.org/schema/v0/exercise.json",
  "aliases": [
    {
      "text": "Chin-up Isometric Hold",
      "kind": "common"
    },
    {
      "text": "Isometric Chin-Up",
      "kind": "common"
    },
    {
      "text": "Top Chin-Up Hold",
      "kind": "common"
    }
  ],
  "anatomy": {
    "muscles": [
      {
        "muscle": "latissimus-dorsi",
        "role": "prime-mover"
      },
      {
        "muscle": "biceps-brachii",
        "role": "prime-mover"
      },
      {
        "muscle": "brachialis",
        "role": "synergist"
      },
      {
        "muscle": "teres-major",
        "role": "synergist"
      },
      {
        "muscle": "trapezius-lower",
        "role": "synergist"
      },
      {
        "muscle": "rhomboids",
        "role": "synergist"
      },
      {
        "muscle": "rectus-abdominis",
        "role": "stabilizer"
      },
      {
        "muscle": "forearm-flexors",
        "role": "stabilizer"
      }
    ],
    "joints": [
      {
        "joint": "elbow",
        "actions": [
          "isometric-stabilization"
        ]
      },
      {
        "joint": "glenohumeral",
        "actions": [
          "isometric-stabilization"
        ]
      },
      {
        "joint": "scapulothoracic",
        "actions": [
          "depression",
          "retraction"
        ]
      }
    ]
  },
  "classification": {
    "modalities": [
      "calisthenics",
      "strength"
    ],
    "movement_patterns": [
      "vertical-pull"
    ],
    "mechanics": "compound",
    "force": "static",
    "kinetic_chain": "closed",
    "laterality": "bilateral",
    "planes": [
      "sagittal"
    ],
    "contraction": [
      "isometric"
    ],
    "level": "intermediate"
  },
  "equipment": {
    "optional": [
      "plyo-box",
      "step"
    ],
    "required": [
      [
        "pull-up-bar"
      ]
    ]
  },
  "external_ids": {
    "wger": "1282"
  },
  "id": "oec:chin-up-hold",
  "instructions": {
    "setup": [
      "Grasp an overhead pull-up bar with a shoulder-width supinated grip (palms facing you).",
      "Either step off a box or pull yourself smoothly up until your chin is clearly over the bar and your chest is close to it."
    ],
    "steps": [
      "Fix your position at the top with your elbows fully flexed and drawn down toward your ribs.",
      "Pack your shoulders down and back, keeping your chest proud.",
      "Brace your core and squeeze your legs together to prevent swinging.",
      "Hold this apex position motionless for the target duration.",
      "Lower yourself under control to a dead hang or step down to the box."
    ],
    "breathing": "Breathe continuously with controlled, shallow breaths while maintaining core brace throughout the hold.",
    "cues": [
      "Chest to the bar",
      "Elbows in your back pockets",
      "Stay tight from hands to toes"
    ],
    "common_faults": [
      {
        "fault": "Reaching up with the neck and hyperextending the cervical spine to keep the chin over the bar.",
        "correction": "Keep your neck neutral and drive your chest upward to maintain position rather than craning your neck."
      },
      {
        "fault": "Shrugging the shoulders up toward the ears as fatigue sets in.",
        "correction": "Actively depress your scapulae by pulling your shoulder blades down and back throughout the hold."
      },
      {
        "fault": "Swinging the legs or allowing the body to rotate.",
        "correction": "Brace your abdominals and squeeze your glutes and legs together in a slight hollow-body position."
      }
    ],
    "safety": {
      "precautions": [
        "Ensure the pull-up bar is secure and the area underneath is clear of hazards.",
        "Terminate the hold before technical failure to allow a safe, controlled descent."
      ],
      "spotter": "not-needed"
    }
  },
  "measurement": {
    "duration_counted": "total",
    "load": {
      "kind": "bodyweight"
    },
    "profiles": [
      {
        "required": [
          "duration"
        ],
        "optional": [
          "rpe"
        ]
      }
    ],
    "records": {}
  },
  "name": "Chin-Up Hold",
  "previous_ids": [
    "oec:chin-up-isometric-hold"
  ],
  "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: Chin-up Isometric Hold",
        "url": "https://wger.de/en/exercise/1282/view-base",
        "license": "CC-BY-SA-4.0",
        "author": "clafal"
      }
    ]
  },
  "relations": [
    {
      "type": "regression-of",
      "target": "oec:chin-up"
    },
    {
      "type": "variation-of",
      "target": "oec:pull-up-hold"
    },
    {
      "type": "substitute-for",
      "target": "oec:pull-up-hold"
    }
  ],
  "setup": {
    "grip": {
      "orientation": "supinated",
      "width": "shoulder"
    },
    "position": "hanging"
  },
  "status": "active",
  "summary": "An isometric bodyweight exercise where the top position of a chin-up is held with the chin above the bar to build pulling and grip endurance."
}