> ## 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.

# Depth

> Vertical displacement of the pelvis from start to bottom of the squat.

## Technical Details

* **Variable Type:** Discrete Metric
* **Data Type:** Float
* **Units:** meters (m)
* **Column Name:** `squat_depth`
* **Aggregation:** mean
* **Precision:** 2
* **Optimal Direction:** Higher is better
* **Measurement:** Vertical displacement of the pelvis from [Initiation](/biomechanics/activities/squat/events/initiation) to [Bottom](/biomechanics/activities/squat/events/bottom)

## Description

Depth is the vertical distance the pelvis travels from the start of the squat to the bottom position.
It can reflect squat range of motion and functional ability.

## Use Cases

* Range of motion assessment
* Consistency of squat depth across reps
* Comparison across squat variations