Overview
The SFMA shoulder extension is a standardized movement assessment used in the Selective Functional Movement Assessment (SFMA) protocol to evaluate shoulder extension range of motion and identify potential sources of pain or limitation. This assessment provides valuable information about shoulder mobility and function.Instructions
Dimensions
Required inputs for processing:- Handedness: the side [‘left’,‘right’] performing the movement
Events
| Event | Description | Column Name |
|---|---|---|
| MaxElbowFlexion | Frame of maximum elbow flexion during extension | “ |
Discrete Metrics
| Metric | Units | Description | Column Name |
|---|---|---|---|
| MaxElbowFlexion | Degrees | Maximum elbow flexion angle | “ |
| MaxExtensionAngle | Degrees | Maximum shoulder extension angle | sfma_shoulder_extension_peak_extension_angle |
| MaxInternalRotation | Degrees | Maximum internal rotation | sfma_shoulder_extension_peak_internal_rotation_angle |
| SideBendComp | - | Whether side bend compensation occurred (> 20°) | “ |
| WristDeviation | Degrees | Wrist deviation angle | sfma_shoulder_extension_wrist_deviation |
| Functional | - | Whether movement is functional | sfma_shoulder_extension_functional |
| WristToShoulderDistance | m | Distance from wrist to shoulder | “ |
Notes
- Maximum elbow flexion is detected using peak detection with inverted signal
- The event is used to identify the time point for assessing wrist/fingertip position relative to shoulder
- Functional movement is determined by wrist/fingertip position relative to shoulder