> ## Documentation Index
> Fetch the complete documentation index at: https://docs.uplift.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Peak Arm Angular Velocity

> Maximum angular velocity (twist speed) of the upper arm segment during the pitch.

## Technical Details

* **Variable Type:** Discrete Metric
* **Data Type:** Float
* **Units:** °/s
* **Column Name:** `peak_arm_angular_velocity`
* **Aggregation:** mean
* **Precision:** 0
* **Measurement:** Maximum angular velocity of upper arm segment
* **Typical Range:** 1160 – 1382 °/s
* **Optimal Direction:** Higher is better

## Description

Peak arm angular velocity measures the maximum angular velocity (twist speed) of the upper arm segment during the pitch, indicating the peak rotational speed of the arm.

## 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              | 1255 – 1331 °/s           |  947 | 1050 | 1192 | 1255 | 1331 |
| High School        | 1332 – 1445 °/s           | 1076 | 1166 | 1257 | 1332 | 1445 |
| College            | 1472 – 1595 °/s           | 1192 | 1288 | 1363 | 1472 | 1595 |
| Professional       | 1478 – 1625 °/s           | 1123 | 1274 | 1372 | 1478 | 1625 |
| Broad (All Levels) | 1382 – 1498 °/s           | 1002 | 1160 | 1271 | 1382 | 1498 |

## Use Cases

* Arm power assessment
* Kinematic sequence analysis