> ## 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.

# Twist

> The average timing of peak angular velocities for the pelvis, trunk, and arm. Used to identify the timing of the major twisting motion during the swing.

## Technical Details

* **Variable Type:** Event
* **Data Type:** Integer
* **Units:** Frame number
* **Column Name:** `twist_frame`
* **Calculation:** Average of peak angular velocity events
* **Segments:** Pelvis, trunk, and arm

## Description

The twist event represents the average timing of peak angular velocities across the major body segments (pelvis, trunk, and arm), identifying the core of the twisting motion during the swing.

## Use Cases

* Twist timing analysis
* Segment coordination assessment
* Swing sequence evaluation
* Power transfer analysis