> ## 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.

# Wrist Height at Release

> Wrist height above ground level at release, normalized by athlete height.

## Technical Details

* **Variable Type:** Discrete Metric
* **Data Type:** Float
* **Units:** % of height
* **Column Name:** `wrist_height_at_release`
* **Aggregation:** mean
* **Precision:** 0
* **Measurement:** Throwing wrist height at release relative to ground level, normalized by athlete height
* **Reference:** Ground level estimated from the average of the rear toe at initiation and lead toe at foot contact
* **Timing:** At ball release event
* **Optimal Direction:** Middle — moderate values are optimal

## Description

Wrist height at release measures how high the throwing wrist is above the ground at the instant of ball release, normalized by the athlete's estimated height. Ground level is estimated from the rear toe position at initiation and the lead toe position at foot contact.

## Use Cases

* Release point consistency
* Mechanics evaluation