Technical Details
- Variable Type: Discrete Metric
- Data Type: Float
- Units: ratio
- Column Name:
pelvis_to_trunk_velocity_speedup - Aggregation: mean
- Precision: 2
- Calculation: Peak trunk velocity / Peak pelvis velocity
- Optimal Range: 1.25-1.75
- Optimal Direction: Higher is better
Description
Pelvis to trunk speed up measures the multiplication factor of velocity increase from the pelvis to the trunk peak angular velocities. This metric broadly indicates the efficiency of power transfer from the lower body to the core.Normative Ranges
Percentile distributions by competition level from the 2026 Q1 dataset; the optimal range spans the 75th–90th percentiles.| Population | Optimal Range (75th–90th) | 10th | 25th | 50th | 75th | 90th |
|---|---|---|---|---|---|---|
| Youth | 1.45 – 1.57 | 1.19 | 1.27 | 1.35 | 1.45 | 1.57 |
| High School | 1.49 – 1.63 | 1.20 | 1.29 | 1.39 | 1.49 | 1.63 |
| College | 1.36 – 1.50 | 1.14 | 1.19 | 1.29 | 1.36 | 1.50 |
| Professional | 1.35 – 1.48 | 1.05 | 1.12 | 1.19 | 1.35 | 1.48 |
| Broad (All Levels) | 1.44 – 1.57 | 1.12 | 1.20 | 1.32 | 1.44 | 1.57 |
Use Cases
- Power transfer analysis
- Kinetic chain efficiency