{
  "resourceType": "ActivityDefinition",
  "id": "chair-triceps-dip",
  "url": "https://bodyiq.dev/fhir/ActivityDefinition/chair-triceps-dip",
  "version": "1",
  "name": "ChairTricepsDip",
  "title": "Chair Triceps Dip",
  "status": "draft",
  "experimental": true,
  "description": "Sit at the edge of a sturdy chair, grip the front edge with hands beside your hips, slide your hips off the seat, then bend and straighten your elbows to lower and press your body up using a chair.",
  "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": "chair-triceps-dip",
          "display": "Chair Triceps Dip"
        }
      ]
    }
  ],
  "bodySite": [
    {
      "coding": [
        {
          "system": "https://bodyiq.dev/fhir/CodeSystem/exercise",
          "code": "elbow",
          "display": "Elbow"
        },
        {
          "system": "http://snomed.info/sct",
          "code": "44034005",
          "display": "Structure of humeroulnar joint"
        }
      ],
      "text": "Elbow"
    },
    {
      "coding": [
        {
          "system": "https://bodyiq.dev/fhir/CodeSystem/exercise",
          "code": "shoulder",
          "display": "Shoulder"
        },
        {
          "system": "http://snomed.info/sct",
          "code": "85537004",
          "display": "Structure of glenohumeral joint"
        },
        {
          "system": "http://snomed.info/sct",
          "code": "264190008",
          "display": "Structure of scapulothoracic joint"
        }
      ],
      "text": "Shoulder"
    }
  ],
  "kind": "ServiceRequest",
  "dosage": [
    {
      "text": "2-3 sets of 8-12 controlled repetitions, 2-3 times per week, resting 60-90 seconds between sets; use a range of motion that stays pain-free at the front of the shoulder."
    }
  ],
  "usage": "Evidence: limited. Dip-pattern pressing is among the highest triceps brachii activators on surface EMG; anterior deltoid and clavicular pectoralis major contribute during the shoulder-flexion drive, while lower trapezius and serratus anterior act isometrically to keep the scapula depressed and stable.",
  "note": [
    {
      "text": "Keep your hips close to the chair so your weight stays over your hands, not out in front of you."
    },
    {
      "text": "Point your elbows straight back as you bend — don't let them flare out to the sides."
    },
    {
      "text": "Lower only until your upper arms are about parallel to the floor; stop sooner if you feel any pinching in the front of the shoulder."
    },
    {
      "text": "Keep your shoulders down and away from your ears, and press the floor away through straight arms at the top."
    }
  ],
  "relatedArtifact": [
    {
      "type": "successor",
      "label": "3×12 chair dips that are pain-free at the front of the shoulder",
      "display": "Parallel Bar Support Hold",
      "resource": "ActivityDefinition/parallel-bar-support-hold"
    }
  ],
  "extension": [
    {
      "url": "https://bodyiq.dev/fhir/StructureDefinition/muscle-involvement",
      "extension": [
        {
          "url": "muscle",
          "valueString": "Triceps Brachii"
        },
        {
          "url": "role",
          "valueCode": "primary"
        },
        {
          "url": "coding",
          "valueCoding": {
            "system": "http://snomed.info/sct",
            "code": "40284004"
          }
        }
      ]
    },
    {
      "url": "https://bodyiq.dev/fhir/StructureDefinition/muscle-involvement",
      "extension": [
        {
          "url": "muscle",
          "valueString": "Anconeus"
        },
        {
          "url": "role",
          "valueCode": "synergist"
        }
      ]
    },
    {
      "url": "https://bodyiq.dev/fhir/StructureDefinition/muscle-involvement",
      "extension": [
        {
          "url": "muscle",
          "valueString": "Anterior Deltoid"
        },
        {
          "url": "role",
          "valueCode": "secondary"
        },
        {
          "url": "coding",
          "valueCoding": {
            "system": "http://snomed.info/sct",
            "code": "35259002"
          }
        }
      ]
    },
    {
      "url": "https://bodyiq.dev/fhir/StructureDefinition/muscle-involvement",
      "extension": [
        {
          "url": "muscle",
          "valueString": "Pectoralis Major"
        },
        {
          "url": "role",
          "valueCode": "secondary"
        },
        {
          "url": "coding",
          "valueCoding": {
            "system": "http://snomed.info/sct",
            "code": "60005003"
          }
        }
      ]
    },
    {
      "url": "https://bodyiq.dev/fhir/StructureDefinition/muscle-involvement",
      "extension": [
        {
          "url": "muscle",
          "valueString": "Lower Trapezius"
        },
        {
          "url": "role",
          "valueCode": "stabilizer"
        },
        {
          "url": "coding",
          "valueCoding": {
            "system": "http://snomed.info/sct",
            "code": "31764008"
          }
        }
      ]
    },
    {
      "url": "https://bodyiq.dev/fhir/StructureDefinition/muscle-involvement",
      "extension": [
        {
          "url": "muscle",
          "valueString": "Serratus Anterior"
        },
        {
          "url": "role",
          "valueCode": "stabilizer"
        },
        {
          "url": "coding",
          "valueCoding": {
            "system": "http://snomed.info/sct",
            "code": "18346003"
          }
        }
      ]
    }
  ]
}