> ## 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.

# P6 Pre-Impact

> The moment just before impact, identified as the frame where the lead wrist is closest to the trail hip.

## Technical Details

* **Variable Type:** Event
* **Data Type:** Integer
* **Units:** Frame number
* **Column Name:** `p6_pre_impact_frame`
* **Required for QA:** False
* **Measurement:** Minimum distance between the lead wrist and trail hip, searched between Top of Swing and Finish
* **Timing:** Between P5 Transition and P7 Impact

## Description

P6 Pre-Impact approximates the moment just before the club strikes the ball, identified as the frame where the lead wrist is closest to the trail hip.

## Use Cases

* Impact approach timing
* Downswing mechanics analysis