{
  "$schema": "https://openexercise.org/schema/v0/exercise.json",
  "aliases": [
    {
      "text": "Eyes Closed Single Leg Stand",
      "kind": "common"
    },
    {
      "text": "Blind Single-Leg Balance",
      "kind": "common"
    },
    {
      "text": "Eyes-Closed Single-Leg Stance",
      "kind": "common"
    }
  ],
  "anatomy": {
    "muscles": [
      {
        "muscle": "foot-intrinsics",
        "role": "prime-mover"
      },
      {
        "muscle": "gluteus-medius",
        "role": "prime-mover"
      },
      {
        "muscle": "tibialis-anterior",
        "role": "synergist"
      },
      {
        "muscle": "soleus",
        "role": "synergist"
      },
      {
        "muscle": "peroneals",
        "role": "synergist"
      },
      {
        "muscle": "transversus-abdominis",
        "role": "stabilizer"
      }
    ],
    "joints": [
      {
        "joint": "ankle",
        "actions": [
          "isometric-stabilization"
        ]
      },
      {
        "joint": "subtalar",
        "actions": [
          "isometric-stabilization"
        ]
      },
      {
        "joint": "knee",
        "actions": [
          "isometric-stabilization"
        ]
      },
      {
        "joint": "hip",
        "actions": [
          "isometric-stabilization"
        ]
      }
    ]
  },
  "classification": {
    "modalities": [
      "balance",
      "rehabilitation"
    ],
    "movement_patterns": [
      "balance"
    ],
    "mechanics": "not-applicable",
    "force": "static",
    "kinetic_chain": "closed",
    "laterality": "unilateral",
    "planes": [
      "sagittal",
      "frontal",
      "transverse"
    ],
    "contraction": [
      "isometric"
    ],
    "level": "intermediate"
  },
  "equipment": {
    "optional": [
      "wall",
      "chair"
    ],
    "required": []
  },
  "external_ids": {
    "wger": "2667"
  },
  "id": "oec:single-leg-balance-with-eyes-closed",
  "instructions": {
    "setup": [
      "Stand tall on a firm, level surface, ideally within arm's reach of a wall or sturdy chair for safety.",
      "Distribute your weight evenly across your target stance foot, unlocking the knee slightly.",
      "Lift the non-working foot off the floor by flexing the hip and knee so it hovers freely without touching the standing leg."
    ],
    "steps": [
      "Establish steady balance on the single leg while your eyes are still open.",
      "Gently close both eyes and maintain an upright posture.",
      "Rely on proprioceptive feedback from the foot, ankle, and hip to continuously correct micro-instabilities.",
      "Hold the position for the prescribed duration before opening your eyes and lowering the non-working leg."
    ],
    "breathing": "Breathe smoothly, rhythmically, and calmly throughout the hold without holding your breath.",
    "cues": [
      "Tripod foot: balance weight across heel, big toe, and pinky toe",
      "Soft knee, strong hip",
      "Stand tall through the crown of your head"
    ],
    "common_faults": [
      {
        "fault": "Locking the standing knee into hyperextension.",
        "correction": "Keep a micro-bend in the knee to allow the leg muscles to actively absorb movement."
      },
      {
        "fault": "Resting the free foot against the stance leg (kickstanding).",
        "correction": "Keep the non-working leg completely hovering and free from contact with the support leg."
      },
      {
        "fault": "Excessive hip drop on the non-working side (Trendelenburg sign).",
        "correction": "Engage the stance-leg gluteus medius to keep the pelvis level."
      }
    ],
    "safety": {
      "precautions": [
        "Perform near a wall, counter, or sturdy chair to catch yourself if you lose balance."
      ],
      "spotter": "not-needed"
    }
  },
  "measurement": {
    "duration_counted": "per-side",
    "load": {
      "kind": "none"
    },
    "profiles": [
      {
        "required": [
          "duration"
        ],
        "optional": [
          "rpe"
        ]
      }
    ],
    "records": {}
  },
  "name": "Single-Leg Balance with Eyes Closed",
  "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: Single-Leg Balance with Eyes Closed",
        "url": "https://wger.de/en/exercise/2667/view-base",
        "license": "CC-BY-SA-4.0",
        "author": "trs1800"
      }
    ]
  },
  "relations": [
    {
      "type": "substitute-for",
      "target": "oec:bosu-single-leg-balance"
    }
  ],
  "setup": {
    "position": "standing",
    "stance": {
      "kind": "single-leg",
      "width": "narrow"
    }
  },
  "status": "active",
  "summary": "An advanced isometric proprioception exercise where you maintain upright balance on one foot without visual feedback."
}