SpaceflightHealthSimulationsReferenceDocumentation - Local Development build (v0.5.12) built by the FHIR (HL7® FHIR® Standard) Build Tools. See the Directory of published versions
Extension: Harness Load
| Official URL: http://hl7.org/fhir/uv/aerospace/StructureDefinition/harness-load | Version: 0.5.12 | |||
| Active as of 2026-03-25 | Computable Name: HarnessLoad | |||
Percentage of body weight applied by harness during treadmill exercise
Context of Use
-
Element ID:
Observation
This extension may be used on the following element(s)
Usage info
Usages:
- Use this Extension: Space Exercise Activity Group
- Examples for this Extension: Observation/ISS-T2-Run-Group-001
You can also check for usages in the FHIR IG Statistics
Formal Views of Extension Content
Description of Profiles, Differentials, Snapshots, and how the XML and JSON presentations work.
This structure is derived from Extension
| Name | Flags | Card. | Type | Description & Constraints Filter:   |
|---|---|---|---|---|
  Extension |
0..* | Extension | Harness Load | |
  extension |
0..0 | Extension | ||
| url |
1..1 | uri | "http://hl7.org/fhir/uv/aerospace/StructureDefinition/harness-load" | |
  value[x] |
0..1 | Quantity | Percentage of 1-g body weight | |
 system |
0..1 | uri | System that defines coded unit form Required Pattern: http://unitsofmeasure.org | |
 code |
0..1 | code | Coded form of the unit Required Pattern: % | |
| Documentation for this format | ||||
| Name | Flags | Card. | Type | Description & Constraints Filter: |
|---|---|---|---|---|
| Extension |
0..* | Extension | Harness Load | |
 id |
0..1 | string | Unique id for inter-element referencing | |
| extension |
0..0 | Extension Slice: Unordered, Open by value:url | ||
| url |
1..1 | uri | "http://hl7.org/fhir/uv/aerospace/StructureDefinition/harness-load" | |
| value[x] |
0..1 | Quantity | Percentage of 1-g body weight | |
| id |
0..1 | string | Unique id for inter-element referencing | |
| extension |
0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url | |
| value |
Σ | 0..1 | decimal | Numerical value (with implicit precision) |
| comparator |
?!Σ | 0..1 | code | < | <= | >= | > - how to understand the value Binding: QuantityComparator (required): How the Quantity should be understood and represented. |
| unit |
Σ | 0..1 | string | Unit representation |
| system |
ΣC | 0..1 | uri | System that defines coded unit form Required Pattern: http://unitsofmeasure.org |
| code |
Σ | 0..1 | code | Coded form of the unit Required Pattern: % |
| Documentation for this format | ||||
This structure is derived from Extension
Differential View
This structure is derived from Extension
| Name | Flags | Card. | Type | Description & Constraints Filter: |
|---|---|---|---|---|
| Extension |
0..* | Extension | Harness Load | |
| extension |
0..0 | Extension | ||
| url |
1..1 | uri | "http://hl7.org/fhir/uv/aerospace/StructureDefinition/harness-load" | |
| value[x] |
0..1 | Quantity | Percentage of 1-g body weight | |
| system |
0..1 | uri | System that defines coded unit form Required Pattern: http://unitsofmeasure.org | |
| code |
0..1 | code | Coded form of the unit Required Pattern: % | |
| Documentation for this format | ||||
Snapshot View
| Name | Flags | Card. | Type | Description & Constraints Filter: |
|---|---|---|---|---|
| Extension |
0..* | Extension | Harness Load | |
| id |
0..1 | string | Unique id for inter-element referencing | |
| extension |
0..0 | Extension Slice: Unordered, Open by value:url | ||
| url |
1..1 | uri | "http://hl7.org/fhir/uv/aerospace/StructureDefinition/harness-load" | |
| value[x] |
0..1 | Quantity | Percentage of 1-g body weight | |
| id |
0..1 | string | Unique id for inter-element referencing | |
| extension |
0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url | |
| value |
Σ | 0..1 | decimal | Numerical value (with implicit precision) |
| comparator |
?!Σ | 0..1 | code | < | <= | >= | > - how to understand the value Binding: QuantityComparator (required): How the Quantity should be understood and represented. |
| unit |
Σ | 0..1 | string | Unit representation |
| system |
ΣC | 0..1 | uri | System that defines coded unit form Required Pattern: http://unitsofmeasure.org |
| code |
Σ | 0..1 | code | Coded form of the unit Required Pattern: % |
| Documentation for this format | ||||
This structure is derived from Extension
Other representations of profile: CSV, Excel, Schematron
Terminology Bindings
| Path | Status | Usage | ValueSet | Version | Source |
| Extension.value[x].comparator | Base | required | QuantityComparator | 📍4.0.1 | FHIR Std. |
Constraints
| Id | Grade | Path(s) | Description | Expression |
| ele-1 | error | **ALL** elements | All FHIR elements must have a @value or children |
hasValue() or (children().count() > id.count())
|
| ext-1 | error | **ALL** extensions | Must have either extensions or value[x], not both |
extension.exists() != value.exists()
|