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👤 Author: @Ryan Summersby - Research Coordinator
✍️Last Updated by: @Ryan Summersby
🗓️Last Updated: 28th of August, 2026
📋Description: This page provides an overview of the most up-to-date Output Sports IMU validity and reliability research, conducted both internally and externally, across key testing domains: jumps, reactive strength index, velocity-based training, angular velocity, and range of motion.
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| Jumps - Jump Height (cm) | RSI - RSI (m/s) | RSI - Ground Contact Time (s) | RSI - Flight Time (s) | VBT - Mean Velocity (m/s) | VBT - Peak Velocity (m/s) | **Mobility - Range of Motion (**°) | |
|---|---|---|---|---|---|---|---|
| ‣ | 0.98-0.99 | 0.98-0.99 | 0.97-0.99 | 0.99 | 0.95-0.99 | 0.95-0.98 | 0.99 |
| ‣ | 0.96-0.99 | 0.96-0.97 | 0.93-0.98 | 0.98 | 0.90-0.98 | 0.91-0.92 | 0.99 |
| ‣ | 0.8–1.4 | 0.05-0.07 | 0.008 | 0.008 | 0.02-0.07 | 0.03-0.11 | 0.53-1.20 |
| ‣ | 1.0 | 0.08-0.09 | 0.010 | 0.011 | 0.05-0.10 | 0.06-0.15 | 0.82-1.53 |
| ‣ | 0.24 | 0.017 | 0.002 | - | - | - | - |
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The validation metrics in this table were derived by comparing measurements from the Output Sports IMU against industry gold standards across various testing domains: Velocity-based Training (GymAware Linear Positional Transducer), Jumps and Reactive Strength Index (Force plate and OptoJump photoelectric cell), and Range of Motion (360° digital angle finder).
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| Jumps - Jump Height (cm) | RSI - Reactive Strength Index (m/s) | RSI - Ground Contact Time (s) | |
|---|---|---|---|
| ‣ | 0.96-0.98 | 0.93 | 0.95 |
| ‣ | 0.45-0.56 cm | 0.03 m/s | 0.01 s |
| ‣ | 1.0-3.8% | 2.3% | 1.6% |
| ‣ | 1.05 cm | - | - |
| ‣ | 1.47 cm | - | - |
@Ryan Summersby - Research Coordinator