{
  "resourceType": "ActivityDefinition",
  "id": "cervical-protraction-awareness",
  "url": "https://bodyiq.dev/fhir/ActivityDefinition/cervical-protraction-awareness",
  "version": "1",
  "name": "CervicalProtractionAwareness",
  "title": "Cervical Protraction Awareness",
  "status": "draft",
  "experimental": true,
  "description": "A slow, controlled motor-control drill that teaches you to feel and steer your head between a forward \"protracted\" glide and a neutral, stacked position. You glide the head horizontally forward, pause to notice the sensation, then guide it back to where the ears stack over the shoulders. The goal is not strength but proprioceptive awareness: learning to detect when the head has drifted forward so you can self-correct throughout the day.",
  "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": "cervical-protraction-awareness",
          "display": "Cervical Protraction Awareness"
        }
      ]
    }
  ],
  "bodySite": [
    {
      "coding": [
        {
          "system": "https://bodyiq.dev/fhir/CodeSystem/exercise",
          "code": "cervical-spine",
          "display": "Cervical Spine"
        },
        {
          "system": "http://snomed.info/sct",
          "code": "68818006",
          "display": "Structure of cervical intervertebral disc"
        }
      ],
      "text": "Cervical Spine"
    }
  ],
  "kind": "ServiceRequest",
  "dosage": [
    {
      "text": "2-3 sets of 8-10 slow, controlled repetitions, holding 2-3 seconds at the forward and neutral positions, once or twice daily. Movement should be smooth and pain-free; stop short of any range that provokes symptoms."
    }
  ],
  "usage": "Evidence: limited. No EMG data specific to this awareness drill. By movement pattern, sternocleidomastoid and scalene activity accompany the forward glide while the deep cervical flexors (longus colli/capitis) go relatively quiet, which is the functional rationale for using the return-to-neutral phase to re-cue deep-flexor control.",
  "note": [
    {
      "text": "Picture a drawer sliding straight out on its rails: glide the whole head forward horizontally rather than tipping the chin up or dropping it down."
    },
    {
      "text": "As you glide forward, notice the back of the neck gently shortening; as you return, feel it lengthen and the throat soften."
    },
    {
      "text": "Move slowly enough that you could freeze at any point along the way. This is about control and noticing, not reps for speed."
    },
    {
      "text": "Finish by settling to the spot where your ears stack over your shoulders and the head feels light and tall on top of the spine."
    }
  ],
  "extension": [
    {
      "url": "https://bodyiq.dev/fhir/StructureDefinition/muscle-involvement",
      "extension": [
        {
          "url": "muscle",
          "valueString": "Sternocleidomastoid"
        },
        {
          "url": "role",
          "valueCode": "primary"
        },
        {
          "url": "coding",
          "valueCoding": {
            "system": "http://snomed.info/sct",
            "code": "22823000"
          }
        }
      ]
    },
    {
      "url": "https://bodyiq.dev/fhir/StructureDefinition/muscle-involvement",
      "extension": [
        {
          "url": "muscle",
          "valueString": "Scalene Muscles"
        },
        {
          "url": "role",
          "valueCode": "synergist"
        },
        {
          "url": "coding",
          "valueCoding": {
            "system": "http://snomed.info/sct",
            "code": "50755001"
          }
        }
      ]
    },
    {
      "url": "https://bodyiq.dev/fhir/StructureDefinition/muscle-involvement",
      "extension": [
        {
          "url": "muscle",
          "valueString": "Suboccipital Muscles"
        },
        {
          "url": "role",
          "valueCode": "secondary"
        },
        {
          "url": "coding",
          "valueCoding": {
            "system": "http://snomed.info/sct",
            "code": "244847002"
          }
        }
      ]
    },
    {
      "url": "https://bodyiq.dev/fhir/StructureDefinition/muscle-involvement",
      "extension": [
        {
          "url": "muscle",
          "valueString": "Deep Cervical Flexors"
        },
        {
          "url": "role",
          "valueCode": "lengthening"
        }
      ]
    },
    {
      "url": "https://bodyiq.dev/fhir/StructureDefinition/muscle-involvement",
      "extension": [
        {
          "url": "muscle",
          "valueString": "Splenius Capitis"
        },
        {
          "url": "role",
          "valueCode": "synergist"
        },
        {
          "url": "coding",
          "valueCoding": {
            "system": "http://snomed.info/sct",
            "code": "1600003"
          }
        }
      ]
    }
  ]
}