Technical Details
- Variable Type: Discrete Metric
- Data Type: Float
- Units: °
- Column Name:
rear_scap_load_at_launch - Aggregation: mean
- Precision: 0
- Measurement: Rear shoulder flexion/extension at launch
- Positive: Flexion (horizontal adduction)
- Negative: Extension (horizontal abduction)
- Typical Range: -8 – 19 °
- Optimal Direction: Middle — moderate values are optimal
Description
Scap load at launch measures the amount of rear shoulder flexion or extension at the launch event, indicating the loading and preparation of the rear shoulder for power generation.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 | -4 – 18 ° | -16 | -4 | 6 | 18 | 28 |
| High School | -6 – 23 ° | -18 | -6 | 10 | 23 | 33 |
| College | -8 – 16 ° | -28 | -8 | 4 | 16 | 32 |
| Professional | -16 – 16 ° | -31 | -16 | 0 | 16 | 29 |
| Broad (All Levels) | -8 – 19 ° | -25 | -8 | 5 | 19 | 31 |
Use Cases
- Rear shoulder loading analysis
- Scapular mechanics assessment