{
  "resourceType": "ActivityDefinition",
  "id": "ankle-eversion-inversion-strengthening",
  "url": "https://bodyiq.dev/fhir/ActivityDefinition/ankle-eversion-inversion-strengthening",
  "version": "1",
  "name": "AnkleEversionInversionStrengthening",
  "title": "Ankle Eversion/Inversion Strengthening",
  "status": "draft",
  "experimental": true,
  "description": "Targeted strengthening of ankle evertors (peroneus longus) and invertors (tibialis anterior/posterior) with resistance band. Band is anchored laterally for eversion, medially for inversion. Prevents recurrent ankle sprains and chronic instability by targeting lateral ankle stabilizers.",
  "useContext": [
    {
      "code": {
        "system": "http://terminology.hl7.org/CodeSystem/usage-context-type",
        "code": "user"
      },
      "valueCodeableConcept": {
        "text": "difficulty: beginner"
      }
    }
  ],
  "topic": [
    {
      "coding": [
        {
          "system": "https://bodyiq.dev/fhir/CodeSystem/exercise",
          "code": "ankle-eversion-inversion-strengthening",
          "display": "Ankle Eversion/Inversion Strengthening"
        }
      ]
    }
  ],
  "bodySite": [
    {
      "coding": [
        {
          "system": "https://bodyiq.dev/fhir/CodeSystem/exercise",
          "code": "ankle",
          "display": "Ankle"
        },
        {
          "system": "http://snomed.info/sct",
          "code": "127863007",
          "display": "Structure of subtalar joint"
        }
      ],
      "text": "Ankle"
    }
  ],
  "kind": "ServiceRequest",
  "dosage": [
    {
      "text": "3×15 reps each direction, progress resistance weekly"
    }
  ],
  "usage": "Evidence: moderate.",
  "note": [
    {
      "text": "Quiet shin — sole rolls inward, then outward",
      "authorString": "focus:internal"
    },
    {
      "text": "Sweep the outside of the foot toward the wall",
      "authorString": "focus:external"
    },
    {
      "text": "Sweep the inside of the foot toward the opposite wall",
      "authorString": "focus:external"
    },
    {
      "text": "Hand on the shin keeps the leg silent",
      "authorString": "focus:tactile"
    }
  ],
  "relatedArtifact": [
    {
      "type": "citation",
      "label": "kisner-therapeutic-2017",
      "citation": "Kisner C, Colby LA, Borstad J. (2017). Therapeutic Exercise: Foundations and Techniques"
    },
    {
      "type": "citation",
      "label": "acsm-guidelines-2021",
      "citation": "American College of Sports Medicine. (2021). ACSM's Guidelines for Exercise Testing and Prescription",
      "document": {
        "url": "https://doi.org/10.4135/9781412994149.n165"
      }
    },
    {
      "type": "citation",
      "label": "wu-ankle-sprain-2025",
      "citation": "Wu V, Padilla CA, Smith NA. (2025). Management of Acute Ankle Sprains: Common Questions and Answers"
    },
    {
      "type": "citation",
      "label": "aafp-ankle-recovery-2025",
      "citation": "American Academy of Family Physicians. (2025). Recovering From an Ankle Sprain"
    },
    {
      "type": "successor",
      "label": "Progress from seated open-chain resisted eversion/inversion to reactive single-leg balance on foam/unstable surface.",
      "display": "Single-Leg Stance on Unstable Surface",
      "resource": "ActivityDefinition/single-leg-stance-unstable"
    }
  ],
  "extension": [
    {
      "url": "https://bodyiq.dev/fhir/StructureDefinition/muscle-involvement",
      "extension": [
        {
          "url": "muscle",
          "valueString": "Peroneus Longus (Fibularis Longus)"
        },
        {
          "url": "role",
          "valueCode": "primary"
        },
        {
          "url": "coding",
          "valueCoding": {
            "system": "http://snomed.info/sct",
            "code": "59831009"
          }
        }
      ]
    },
    {
      "url": "https://bodyiq.dev/fhir/StructureDefinition/muscle-involvement",
      "extension": [
        {
          "url": "muscle",
          "valueString": "Tibialis Anterior"
        },
        {
          "url": "role",
          "valueCode": "primary"
        },
        {
          "url": "coding",
          "valueCoding": {
            "system": "http://snomed.info/sct",
            "code": "73508007"
          }
        }
      ]
    },
    {
      "url": "https://bodyiq.dev/fhir/StructureDefinition/muscle-involvement",
      "extension": [
        {
          "url": "muscle",
          "valueString": "Tibialis Posterior"
        },
        {
          "url": "role",
          "valueCode": "primary"
        },
        {
          "url": "coding",
          "valueCoding": {
            "system": "http://snomed.info/sct",
            "code": "74318005"
          }
        }
      ]
    }
  ]
}