> ## 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 Velocity

> Maximum rotational velocity of the lead arm during the downswing.

## Technical Details

* **Variable Type:** Discrete Metric
* **Data Type:** Float
* **Units:** °/s
* **Column Name:** `peak_arm_angular_velocity`
* **Aggregation:** mean
* **Precision:** 0
* **Optimal Direction:** Higher is better
* **Measurement:** Lead shoulder angular velocity about the twist axis at the Peak Arm Angular Velocity event

## Description

Peak Arm Velocity measures the maximum rotational speed of the lead arm during the downswing, representing the final link in the kinetic chain before impact.

## Use Cases

* Arm speed analysis
* Kinematic Sequence input