> ## 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 Knee Raise

> Maximum lead knee height during the softball pitch.

## Technical Details

* **Variable Type:** Event
* **Data Type:** Integer
* **Units:** Frame number
* **Column Name:** `max_knee_raise_frame`
* **Required for QA:** True
* **Measurement:** Frame of maximum lead knee height, searched within 0.25 s after high hand

## Description

Max Knee Raise identifies the frame of peak lead knee height, which represents the balance point of the leg lift before the drive and delivery phases.

## Use Cases

* Balance point identification
* Stride length calculation
* Foot contact detection