> ## 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.

# Cocking Phase Shoulder Horizontal Abduction

> Maximum horizontal abduction of the dominant shoulder during the cocking phase of the serve.

## Technical Details

* **Variable Type:** Discrete Metric
* **Data Type:** Float
* **Units:** degrees (°)
* **Column Name:** `cocking_phase_shoulder_horizontal_abduction`
* **Measurement:** Maximum horizontal abduction angle of the dominant shoulder during the cocking phase

## Description

Cocking phase shoulder horizontal abduction measures how far the dominant upper arm moves behind the plane of the shoulders while cocking back before acceleration. It reflects the depth of the cocking position ahead of the throwing motion.

## Use Cases

* Cocking phase mechanics
* Shoulder loading assessment
* Injury risk screening