T-Spine Rotation
Biomechanical analysis of thoracic spine rotation range of motion assessment with compensation detection.
T-Spine Rotation
Overview
The t-spine rotation assessment evaluates the range of motion and quality of movement in the thoracic spine during rotation. This assessment measures the ability to achieve sufficient rotation while maintaining proper alignment and identifying any compensations.Events
| Event | Data Type | Description |
|---|---|---|
| Max Left Rotation | Int | Frame of maximum left rotation |
| Max Right Rotation | Int | Frame of maximum right rotation |
Discrete Metrics
| Metric | Data Type | Units | Description |
|---|---|---|---|
| MaxLeftRotation | Float | degrees | Maximum left rotation angle |
| MaxRightRotation | Float | degrees | Maximum right rotation angle |
| LeftRotationSufficient | Boolean | - | Whether left rotation is sufficient (≥ 45°) |
| RightRotationSufficient | Boolean | - | Whether right rotation is sufficient (≥ 45°) |
| PelvisRotationLeft | Float | degrees | Pelvis rotation during left rotation |
| PelvisRotationRight | Float | degrees | Pelvis rotation during right rotation |
| PelvisRotationCompLeft | Int | - | Pelvis rotation compensation during left rotation (1 if > 10°, -1 if < -10°) |
| PelvisRotationCompRight | Int | - | Pelvis rotation compensation during right rotation (1 if > 10°, -1 if < -10°) |
Notes
- All angular measurements follow ISB conventions
- Measurements are based on TrunkAngleWRTGlobalXYZ.Y
- Sufficient rotation is defined as ≥ 45°
- Pelvis rotation compensation is defined as > 10° or < -10°