> ## 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 Trunk Velocity

> Maximum rotational (twist) velocity of the trunk during the downswing.

## Technical Details

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

## Description

Peak Trunk Velocity measures the maximum rotational speed of the trunk during the downswing, representing the torso's contribution to the kinetic chain.

## Use Cases

* Torso power analysis
* Kinematic Sequence input