Cervical Flexion/Extension
Biomechanical analysis of cervical spine flexion and extension range of motion assessment.
Cervical Flexion/Extension
Overview
The cervical flexion/extension assessment evaluates the range of motion and quality of movement in the cervical spine during forward and backward bending. This assessment measures the ability to achieve sufficient flexion and extension while maintaining proper alignment.Events
| Event | Data Type | Description |
|---|---|---|
| Max Flexion | Int | Frame of maximum flexion |
| Max Extension | Int | Frame of maximum extension |
Discrete Metrics
| Metric | Data Type | Units | Description |
|---|---|---|---|
| MaxFlexion | Float | degrees | Maximum cervical flexion (90° offset) |
| MaxExtension | Float | degrees | Maximum cervical extension (90° offset) |
| FlexionExtensionROM | Float | degrees | Total range of motion |
| MaxFlexionSufficient | Boolean | - | Whether flexion is sufficient (≥ 45°) |
| MaxExtensionSufficient | Boolean | - | Whether extension is sufficient (≥ 70°) |
| FlexionExtensionROMSufficient | Boolean | - | Whether total ROM is sufficient (≥ 115°) |
Notes
- All angular measurements follow ISB conventions
- Measurements are based on FreeHeadAngleWRTTrunkXYZ.X with 90° offset
- Sufficient flexion is defined as ≥ 45°
- Sufficient extension is defined as ≥ 70°
- Sufficient total ROM is defined as ≥ 115°