extension
Let an agent explain extension by joint, muscles involved and range of motion measurement in general terms, route suspected serious injuries to care, and separate other senses of extension.
Bundle → Layer → Finding → Questions Filled
4 bundles · 8 layers · 8 findings · 16 questions
Anatomy Movement.
Joint
Which joint.
Joint
Joint.
- Which joint is extending, and in which plane? definition
- What is the normal range, according to reference sources? measurement
Muscles
Extensors.
Muscles
Muscles.
- Which muscles produce this extension? definition
- Which nerves supply them? definition
Measure Range of motion.
Goniometry
Measuring angles.
Goniometry
Goniometry.
- How is extension range measured with a goniometer? definition
- What is the starting position? definition
Exercise
Training.
Exercise
Exercise.
- Which exercises train extension safely, according to reputable sources? provenance
- Is the user recovering from an injury? boundary
Injury Hyperextension.
Urgent
Serious injury.
Urgent
Serious injury.
- Is there severe pain, deformity, numbness or inability to move after a hyperextension injury? boundary
- Should urgent medical care be sought, and should the neck be kept still if a neck injury is possible? action
Personal
Personal questions.
Personal
Personal advice limits.
- Is the user asking about their own limited movement? boundary
- How should the agent refer them to a clinician or physiotherapist? action
Senses Disambiguation.
Everyday
Other meanings.
Everyday
Everyday senses.
- Is a deadline extension, building extension or extension cord meant? boundary
- Which entry fits? action
Technical
Computing and logic.
Technical
Technical senses.
- Is a file extension, browser extension or the extension of a concept in logic meant? boundary
- Which entry fits? action
Classifiers Filled
- Family
- Thing Registry
- Category
- Activities and processes
- Entry kind
- thing
- Plane
- ACT
- Domain
- ACT.EVT
- Other names and narrower kinds
- extension of the arm via the shoulder joint, extension of the elbow joint, extension of the wrist joint, extension of the fingers, extension of the thumb, extension of the hip joint, extension of the knee joint, extension of the toes, extension of the torso, extension of the neck, extension of the head, extension of the head on the neck
What it is Filled
In anatomy, a movement that increases the angle between body parts at a joint, straightening a limb or the trunk, such as extending the elbow, knee, hip, wrist, fingers or neck; it is the opposite of flexion, and movement beyond the normal range is hyperextension.
Why it exists Filled
Let an agent explain extension by joint, muscles involved and range of motion measurement in general terms, route suspected serious injuries to care, and separate other senses of extension.
Distinguishing features Filled
- Increases joint angle
- Opposite of flexion
- Produced by extensor muscles
- Measured in degrees
What robots and AI may and may not do Filled
Must not
- Force a joint into extension beyond its safe range, for example in an assistive or rehabilitation device.
- Diagnose a joint problem or prescribe treatment for a person.
- Share a person's movement or health data without consent.
Only with a human decision
- Changing the settings of a rehabilitation or exoskeleton device.
May
- Explain joint extension and its normal range, citing anatomy sources.
- Guide exercises a clinician has prescribed and log the person's progress.
Moral aspects Filled
- Overextension injuries can cause lasting damage, especially to frail people.
- Movement data can reveal health conditions.
Who is affected
- Patients and athletes
- Users of assistive devices
Owners Filled
Steward
The person whose body it is; their clinician answers for treatment.
Links to other meta-models Filled
parent
- Q25624925 - registry parent class
related
- muscle movement - category
- flexion - opposite
- extensor muscle - agent
- goniometer - instrument
What else AI and robots need to interact with it Filled
Identity and identifiers required Filled
- Vercy registry: vr.tr.extension
- Wikidata: Q1384981 (https://www.wikidata.org/wiki/Q1384981)
Direct properties not applicable Not applicable
Not applicable
Plane ACT: no invented physical properties.
Recognition optional Filled
- Straightening movements
- Opposite of bending (flexion)
- Hyperextension goes beyond the normal range
- Straightening of a joint, such as a straight arm or leg.
Capabilities and actions required Filled
- describe extension at a given joint
- identify muscles that produce it
- understand range of motion measurement
- separate other senses of extension
Hazards and failure modes required Filled
- Hyperextension injuries
- Agents diagnosing joint problems
- Confusing senses of extension
Standards and interfaces required Filled
- Anatomical terminology (Terminologia Anatomica)
- Clinical range of motion reference values
Context of use required Filled
- Describing movement in anatomy, exercise and rehabilitation.
- elbow and knee extension
- hip and trunk extension
- wrist and finger extension
- neck extension
- hyperextension
Sources Filled
- Wikidata item Q1384981: extension - identity and sense of the item
- Wikipedia: Extension (kinesiology) - general description of the item
Open questions
- Should each joint movement be a separate entry?
- How should reference ranges be linked?
- How should other senses be split off?
Machine files
Provenance
thing registry research (pass 2) · unreviewed
Built from: models/things/publications/thing-q1384981/spec.json