> ## 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.

# Max X Factor

> Max hip-shoulder separation between drive start and release.

## Technical Details

* **Variable Type:** Discrete Metric
* **Data Type:** Float
* **Units:** deg
* **Column Name:** `max_x_factor`
* **Aggregation:** mean
* **Precision:** 0
* **Measurement:** Max trunk rotation angle relative to the pelvis (hip-shoulder separation)
* **Timing:** Between drive start and release events
* **Optimal Direction:** Higher is better

## Description

Max X factor measures the maximum hip-shoulder separation (trunk rotation relative to the pelvis) achieved between the drive start and release events, reflecting how much rotational energy the athlete stores for delivery.

## Use Cases

* Power generation assessment
* Mechanics evaluation