Overview
Cervical flexion/extension evaluates the range of motion and quality of movement in the neck during forward and backward bending. This assessment provides valuable information about cervical spine mobility and function.
Instructions
From a standing position facing forward, flex the neck bringing your chin close to your chest and hold for ~1 second. Then extend your neck and look up as far as possible, also holding for ~1 second, before returning to the starting position. Keep your back straight and shoulders square during the motion.Dimensions
Required inputs for processing:- None
Discrete Metrics
| Metric | Units | Description | Column Name |
|---|---|---|---|
| MaxFlexion | degrees | Maximum cervical flexion (90° offset) | cervical_peak_flexion |
| MaxExtension | degrees | Maximum cervical extension (90° offset) | cervical_peak_extension |
| FlexionExtensionROM | degrees | Total range of motion | cervical_flexion_extension_range_of_motion |
| MaxFlexionSufficient | - | Whether flexion is sufficient (≥ 45°) | functional_cervical_flexion |
| MaxExtensionSufficient | - | Whether extension is sufficient (≥ 70°) | functional_cervical_extension |
| FlexionExtensionROMSufficient | - | Whether total ROM is sufficient (≥ 115°) | functional_cervical_flexion_extension_range_of_motion |
Notes
- 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°