> ## 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.

# P3 Mid Backswing

> Midpoint of the backswing, identified as the first frame between Address and Top of Swing where the hands rise above the elbows.

## Technical Details

* **Variable Type:** Event
* **Data Type:** Integer
* **Units:** Frame number
* **Column Name:** `p3_mid_backswing_frame`
* **Required for QA:** False
* **Measurement:** First frame where average wrist height exceeds average elbow height
* **Timing:** Between P2 Takeaway and P4 Top of Swing

## Description

P3 Mid Backswing captures the point during the backswing when the arms and hips are actively rotating toward the top of the swing, identified as the first frame where the hands rise above elbow height.

## Use Cases

* Backswing plane analysis
* Arm and body sequencing checks