{
  "$schema": "https://openexercise.org/schema/v0/exercise.json",
  "aliases": [
    {
      "text": "Extreme Pec Stretch",
      "kind": "common"
    },
    {
      "text": "Loaded Pec Stretch",
      "kind": "common"
    },
    {
      "text": "Loaded Chest Stretch",
      "kind": "common"
    },
    {
      "text": "Extreme Chest Stretch",
      "kind": "common"
    },
    {
      "text": "DC Pec Stretch",
      "kind": "common"
    }
  ],
  "anatomy": {
    "muscles": [
      {
        "muscle": "pectoralis-major",
        "role": "stretched"
      },
      {
        "muscle": "pectoralis-minor",
        "role": "stretched"
      },
      {
        "muscle": "deltoid-anterior",
        "role": "stretched"
      },
      {
        "muscle": "biceps-brachii",
        "role": "stretched"
      }
    ],
    "joints": [
      {
        "joint": "glenohumeral",
        "actions": [
          "horizontal-abduction"
        ]
      },
      {
        "joint": "scapulothoracic",
        "actions": [
          "retraction"
        ]
      }
    ]
  },
  "classification": {
    "modalities": [
      "flexibility",
      "hypertrophy"
    ],
    "movement_patterns": [
      "stretch"
    ],
    "mechanics": "isolation",
    "force": "static",
    "kinetic_chain": "open",
    "laterality": "bilateral",
    "planes": [
      "transverse"
    ],
    "contraction": [
      "isometric"
    ],
    "level": "intermediate"
  },
  "equipment": {
    "required": [
      [
        "dumbbell"
      ],
      [
        "bench",
        "adjustable-bench"
      ]
    ]
  },
  "external_ids": {
    "wger": "1919"
  },
  "id": "oec:dumbbell-chest-stretch",
  "instructions": {
    "setup": [
      "Select a pair of light to moderate dumbbells.",
      "Lie flat on a bench with feet planted firmly on the floor.",
      "Press the dumbbells directly over your chest with a neutral grip and maintain a slight, fixed bend in your elbows."
    ],
    "steps": [
      "Inhale deeply, expand your ribcage, and slowly lower the dumbbells out to your sides in a wide arc until you feel an intense stretch across your pectorals.",
      "Hold this deep bottom stretch position statically for the prescribed duration while maintaining slow, deep breathing.",
      "At the end of the hold, smoothly bring your elbows in toward your ribs to safely drop or press the weights back up."
    ],
    "breathing": "Breathe deeply and rhythmically into the ribcage, using full exhalations to facilitate relaxation into the stretch without losing shoulder stability.",
    "cues": [
      "Keep chest high and proud",
      "Slight bend in the elbows",
      "Breathe into the chest"
    ],
    "common_faults": [
      {
        "fault": "Using excessively heavy dumbbells that cause acute joint strain rather than a controlled muscle stretch.",
        "correction": "Use light to moderate weights that allow you to reach a full, comfortable stretch depth without compromising shoulder integrity."
      },
      {
        "fault": "Fully locking or excessively straightening the elbows.",
        "correction": "Maintain a soft, fixed bend at the elbow throughout the entire hold to protect the biceps tendon and elbow joint."
      },
      {
        "fault": "Dumping the shoulders forward into internal rotation.",
        "correction": "Keep the scapulae retracted and depressed against the bench to direct the stretch into the chest rather than the anterior shoulder capsule."
      }
    ],
    "safety": {
      "precautions": [
        "Do not bounce into the stretch; enter and exit the position slowly and with full control.",
        "Avoid this exercise if you have active shoulder impingement or anterior capsule instability."
      ],
      "spotter": "recommended"
    }
  },
  "measurement": {
    "duration_counted": "total",
    "load": {
      "convention": "per-implement",
      "implements": 2,
      "kind": "external"
    },
    "profiles": [
      {
        "required": [
          "duration"
        ],
        "optional": [
          "load",
          "rpe"
        ]
      }
    ],
    "records": {}
  },
  "name": "Dumbbell Chest Stretch",
  "previous_ids": [
    "oec:extreme-pec-stretch"
  ],
  "provenance": {
    "generated": [
      "/name",
      "/summary",
      "/classification",
      "/anatomy",
      "/equipment",
      "/measurement",
      "/instructions",
      "/setup"
    ],
    "license": "CC-BY-SA-4.0",
    "review": {
      "status": "machine-generated",
      "model": "gemini-3.8-flash",
      "at": "2026-10-31"
    },
    "sources": [
      {
        "title": "wger: Extreme Pec Stretch",
        "url": "https://wger.de/en/exercise/1919/view-base",
        "license": "CC-BY-SA-4.0"
      }
    ]
  },
  "setup": {
    "grip": {
      "orientation": "neutral"
    },
    "position": "supine"
  },
  "status": "active",
  "summary": "A loaded static stretch performed lying supine on a bench holding dumbbells at the bottom of a chest fly to deeply stretch the pectorals."
}