Technical Details
- Variable Type: Discrete Metric
- Data Type: Float
- Units: °
- Column Name:
shoulder_rotation_plane_tilt - Aggregation: mean
- Precision: 0
- Measurement: Trunk tilt for shoulder plane alignment
- Direction: Positive indicates tilting forward towards pitcher
- Typical Range: -2 – 12 °
- Optimal Direction: Middle — moderate values are optimal
Description
Shoulder rotation plane tilt measures the amount of lateral trunk tilt needed to align with the optimal plane of shoulder rotation, indicating lateral trunk posture for efficient shoulder mechanics.Normative Ranges
Percentile distributions by competition level from the 2026 Q1 dataset; the optimal range spans the 25th–75th percentiles.| Population | Optimal Range (25th–75th) | 10th | 25th | 50th | 75th | 90th |
|---|---|---|---|---|---|---|
| Youth | -5 – 11 ° | -12 | -5 | 2 | 11 | 16 |
| High School | -8 – 6 ° | -13 | -8 | 0 | 6 | 15 |
| College | 2 – 14 ° | -7 | 2 | 7 | 14 | 21 |
| Professional | 2 – 16 ° | -2 | 2 | 8 | 16 | 21 |
| Broad (All Levels) | -2 – 12 ° | -11 | -2 | 4 | 12 | 19 |
Use Cases
- Lateral trunk posture analysis
- Shoulder mechanics assessment
- Plane alignment evaluation
- Technique optimization