{
  "resourceType": "ActivityDefinition",
  "id": "dart-throwers-motion",
  "url": "https://bodyiq.dev/fhir/ActivityDefinition/dart-throwers-motion",
  "version": "1",
  "name": "DartThrowersMotion",
  "title": "Dart Thrower's Motion",
  "status": "draft",
  "experimental": true,
  "description": "A controlled wrist movement along the natural diagonal (oblique) plane the wrist prefers for everyday tasks. The hand travels from a \"cocked-back\" position of radial deviation with slight extension (thumb up and back) to ulnar deviation with slight flexion (little-finger side down and in), tracing the arc used when throwing a dart, swinging a hammer, or pouring from a jug. The forearm stays still while all motion happens at the wrist.",
  "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": "dart-throwers-motion",
          "display": "Dart Thrower's Motion"
        }
      ]
    }
  ],
  "bodySite": [
    {
      "coding": [
        {
          "system": "https://bodyiq.dev/fhir/CodeSystem/exercise",
          "code": "wrist",
          "display": "Wrist"
        },
        {
          "system": "http://snomed.info/sct",
          "code": "74670003",
          "display": "Structure of radiocarpal joint"
        }
      ],
      "text": "Wrist"
    }
  ],
  "kind": "ServiceRequest",
  "dosage": [
    {
      "text": "2-3 sets of 10-15 slow, controlled repetitions, once daily or every other day. In a rehab context, begin pain-free and within a protected range as guided by the treating clinician, then progress range, load, and speed as tolerated."
    }
  ],
  "usage": "Evidence: moderate.",
  "note": [
    {
      "text": "Think of drawing a hammer back and up, then swinging it down and in to tap a nail. Your hand follows that same diagonal both ways."
    },
    {
      "text": "Keep the forearm glued to the table. All the motion should come from the wrist, not from rolling or lifting the forearm."
    },
    {
      "text": "Travel along the diagonal, not straight up-and-down. The thumb side leads upward, the little-finger side leads downward."
    },
    {
      "text": "Move slowly and smoothly, pausing briefly at each end. Control the return just as much as the way out; no flicking or momentum."
    }
  ],
  "extension": [
    {
      "url": "https://bodyiq.dev/fhir/StructureDefinition/muscle-involvement",
      "extension": [
        {
          "url": "muscle",
          "valueString": "Extensor Carpi Radialis Longus"
        },
        {
          "url": "role",
          "valueCode": "primary"
        },
        {
          "url": "coding",
          "valueCoding": {
            "system": "http://snomed.info/sct",
            "code": "39421004"
          }
        }
      ]
    },
    {
      "url": "https://bodyiq.dev/fhir/StructureDefinition/muscle-involvement",
      "extension": [
        {
          "url": "muscle",
          "valueString": "Extensor Carpi Radialis Brevis"
        },
        {
          "url": "role",
          "valueCode": "primary"
        },
        {
          "url": "coding",
          "valueCoding": {
            "system": "http://snomed.info/sct",
            "code": "86172000"
          }
        }
      ]
    },
    {
      "url": "https://bodyiq.dev/fhir/StructureDefinition/muscle-involvement",
      "extension": [
        {
          "url": "muscle",
          "valueString": "Flexor Carpi Ulnaris"
        },
        {
          "url": "role",
          "valueCode": "primary"
        },
        {
          "url": "coding",
          "valueCoding": {
            "system": "http://snomed.info/sct",
            "code": "14437004"
          }
        }
      ]
    },
    {
      "url": "https://bodyiq.dev/fhir/StructureDefinition/muscle-involvement",
      "extension": [
        {
          "url": "muscle",
          "valueString": "Extensor Carpi Ulnaris"
        },
        {
          "url": "role",
          "valueCode": "stabilizer"
        },
        {
          "url": "coding",
          "valueCoding": {
            "system": "http://snomed.info/sct",
            "code": "113227003"
          }
        }
      ]
    },
    {
      "url": "https://bodyiq.dev/fhir/StructureDefinition/muscle-involvement",
      "extension": [
        {
          "url": "muscle",
          "valueString": "Flexor Carpi Radialis"
        },
        {
          "url": "role",
          "valueCode": "stabilizer"
        },
        {
          "url": "coding",
          "valueCoding": {
            "system": "http://snomed.info/sct",
            "code": "30339000"
          }
        }
      ]
    },
    {
      "url": "https://bodyiq.dev/fhir/StructureDefinition/muscle-involvement",
      "extension": [
        {
          "url": "muscle",
          "valueString": "Abductor Pollicis Longus"
        },
        {
          "url": "role",
          "valueCode": "secondary"
        },
        {
          "url": "coding",
          "valueCoding": {
            "system": "http://snomed.info/sct",
            "code": "25541006"
          }
        }
      ]
    }
  ]
}