{
  "resourceType": "ActivityDefinition",
  "id": "arch-doming",
  "url": "https://bodyiq.dev/fhir/ActivityDefinition/arch-doming",
  "version": "1",
  "name": "ArchDoming",
  "title": "Arch Doming (Short-Foot Exercise)",
  "status": "draft",
  "experimental": true,
  "description": "Seated or standing with the foot flat. Without curling the toes, draw the ball of the foot toward the heel — the arch lifts as the foot 'shortens'. Hold 5 s. Distinct from toe yoga: this is intrinsic-arch isolation.",
  "useContext": [
    {
      "code": {
        "system": "http://terminology.hl7.org/CodeSystem/usage-context-type",
        "code": "user"
      },
      "valueCodeableConcept": {
        "text": "difficulty: intermediate"
      }
    }
  ],
  "topic": [
    {
      "coding": [
        {
          "system": "https://bodyiq.dev/fhir/CodeSystem/exercise",
          "code": "arch-doming",
          "display": "Arch Doming (Short-Foot Exercise)"
        }
      ]
    }
  ],
  "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": "10 reps × 2–3 sets per foot, daily."
    }
  ],
  "usage": "Evidence: moderate.",
  "note": [
    {
      "text": "Don't curl the toes — the toes stay long while the arch lifts"
    },
    {
      "text": "Imagine pulling the big toe toward the heel without bending it"
    }
  ],
  "extension": [
    {
      "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"
          }
        }
      ]
    },
    {
      "url": "https://bodyiq.dev/fhir/StructureDefinition/muscle-involvement",
      "extension": [
        {
          "url": "muscle",
          "valueString": "Peroneus Longus (Fibularis Longus)"
        },
        {
          "url": "role",
          "valueCode": "synergist"
        },
        {
          "url": "coding",
          "valueCoding": {
            "system": "http://snomed.info/sct",
            "code": "59831009"
          }
        }
      ]
    },
    {
      "url": "https://bodyiq.dev/fhir/StructureDefinition/muscle-involvement",
      "extension": [
        {
          "url": "muscle",
          "valueString": "Flexor Hallucis Longus"
        },
        {
          "url": "role",
          "valueCode": "synergist"
        },
        {
          "url": "coding",
          "valueCoding": {
            "system": "http://snomed.info/sct",
            "code": "471000"
          }
        }
      ]
    },
    {
      "url": "https://bodyiq.dev/fhir/StructureDefinition/muscle-involvement",
      "extension": [
        {
          "url": "muscle",
          "valueString": "Tibialis Anterior"
        },
        {
          "url": "role",
          "valueCode": "stabilizer"
        },
        {
          "url": "coding",
          "valueCoding": {
            "system": "http://snomed.info/sct",
            "code": "73508007"
          }
        }
      ]
    }
  ]
}