{
  "$schema": "https://openexercise.org/schema/v0/exercise.json",
  "aliases": [
    {
      "text": "FlexBar Wrist Extension",
      "kind": "brand"
    },
    {
      "text": "TheraBand FlexBar Wrist Extension",
      "kind": "brand"
    },
    {
      "text": "Flexible Bar Wrist Extension",
      "kind": "common"
    }
  ],
  "anatomy": {
    "muscles": [
      {
        "muscle": "forearm-extensors",
        "role": "prime-mover"
      },
      {
        "muscle": "brachioradialis",
        "role": "synergist"
      },
      {
        "muscle": "forearm-flexors",
        "role": "stabilizer"
      },
      {
        "muscle": "hand-intrinsics",
        "role": "stabilizer"
      }
    ],
    "joints": [
      {
        "joint": "wrist",
        "actions": [
          "extension",
          "flexion"
        ]
      },
      {
        "joint": "fingers",
        "actions": [
          "isometric-stabilization"
        ]
      },
      {
        "joint": "radioulnar",
        "actions": [
          "isometric-stabilization"
        ]
      }
    ]
  },
  "classification": {
    "modalities": [
      "rehabilitation",
      "strength"
    ],
    "movement_patterns": [
      "isolation-grip"
    ],
    "mechanics": "isolation",
    "force": "pull",
    "kinetic_chain": "open",
    "laterality": "unilateral",
    "planes": [
      "sagittal"
    ],
    "contraction": [
      "dynamic",
      "eccentric-emphasis"
    ],
    "level": "beginner"
  },
  "equipment": {
    "optional": [
      "chair",
      "bench"
    ],
    "required": [
      [
        "resistance-band"
      ]
    ]
  },
  "external_ids": {
    "wger": "2636"
  },
  "id": "oec:resistance-bar-wrist-extension",
  "instructions": {
    "setup": [
      "Sit comfortably on a chair or bench with your forearm resting flat along your thigh or a sturdy table.",
      "Position your wrist and hand just past the edge of your knee or the table surface, palm facing down toward the floor.",
      "Grip the end of the resistance bar securely in your hand."
    ],
    "steps": [
      "Allow your wrist to flex downward under control, lowering the end of the bar.",
      "Extend your wrist upward against the resistance of the bar until you reach full extension without lifting your forearm.",
      "Pause briefly at the top contraction.",
      "Slowly lower the bar back to the starting flexed position over a controlled three-count."
    ],
    "breathing": "Exhale as you extend the wrist upward; inhale as you slowly lower the resistance bar back down.",
    "cues": [
      "Keep forearm pinned to the surface",
      "Control the downward descent",
      "Move only at the wrist"
    ],
    "common_faults": [
      {
        "fault": "Lifting the forearm off the support surface to assist the lift.",
        "correction": "Keep the entire forearm anchored to isolate movement strictly to the wrist joint."
      },
      {
        "fault": "Dropping the bar quickly without resisting during the lowering phase.",
        "correction": "Lower the bar with a slow, deliberate tempo to maximize eccentric loading on the tendon."
      }
    ],
    "safety": {
      "precautions": [
        "If using for lateral epicondylalgia rehabilitation, choose a resistance level that allows smooth repetitions without sharp pain."
      ],
      "spotter": "not-needed"
    }
  },
  "measurement": {
    "load": {
      "convention": "total",
      "implements": 1,
      "kind": "elastic"
    },
    "profiles": [
      {
        "required": [
          "reps"
        ],
        "optional": [
          "band-tension",
          "tempo",
          "rpe"
        ]
      }
    ],
    "records": {},
    "reps_counted": "per-side"
  },
  "name": "Resistance Bar Wrist Extension",
  "previous_ids": [
    "oec:flexbar-wrist-extension"
  ],
  "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: FlexBar Wrist Extension",
        "url": "https://wger.de/en/exercise/2636/view-base",
        "license": "CC-BY-SA-4.0",
        "author": "trs1800"
      }
    ]
  },
  "relations": [
    {
      "type": "variation-of",
      "target": "oec:dumbbell-wrist-extension"
    },
    {
      "type": "substitute-for",
      "target": "oec:dumbbell-wrist-extension"
    }
  ],
  "setup": {
    "grip": {
      "orientation": "pronated"
    },
    "position": "seated"
  },
  "status": "active",
  "summary": "A unilateral forearm exercise that strengthens the wrist extensors through controlled concentric extension and slow eccentric lowering using an elastic resistance bar."
}