{
  "resourceType": "ActivityDefinition",
  "id": "diaphragmatic-breathing-with-bracing",
  "url": "https://bodyiq.dev/fhir/ActivityDefinition/diaphragmatic-breathing-with-bracing",
  "version": "1",
  "name": "DiaphragmaticBreathingWithBracing",
  "title": "Diaphragmatic Breathing with Bracing",
  "status": "draft",
  "experimental": true,
  "description": "Hands on lower abdomen and lateral ribs. Inhale through the nose, expanding into 360° (front, sides, back). On exhale, gently brace the abdominal wall (~30% of max) while continuing to breathe — sustaining intra-abdominal pressure without breath-holding.",
  "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": "diaphragmatic-breathing-with-bracing",
          "display": "Diaphragmatic Breathing with Bracing"
        }
      ]
    }
  ],
  "kind": "ServiceRequest",
  "dosage": [
    {
      "text": "5 cycles × 2–3 sets before heavy lifting tasks."
    }
  ],
  "usage": "Evidence: moderate.",
  "note": [
    {
      "text": "Brace as if expecting a light punch — not maximal, not breath-hold"
    },
    {
      "text": "Air should be able to flow in and out around the brace"
    }
  ],
  "extension": [
    {
      "url": "https://bodyiq.dev/fhir/StructureDefinition/muscle-involvement",
      "extension": [
        {
          "url": "muscle",
          "valueString": "Diaphragm"
        },
        {
          "url": "role",
          "valueCode": "primary"
        },
        {
          "url": "coding",
          "valueCoding": {
            "system": "http://snomed.info/sct",
            "code": "5798000"
          }
        }
      ]
    },
    {
      "url": "https://bodyiq.dev/fhir/StructureDefinition/muscle-involvement",
      "extension": [
        {
          "url": "muscle",
          "valueString": "Transversus Abdominis"
        },
        {
          "url": "role",
          "valueCode": "primary"
        },
        {
          "url": "coding",
          "valueCoding": {
            "system": "http://snomed.info/sct",
            "code": "86493009"
          }
        }
      ]
    }
  ]
}